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# [HTML5 Boilerplate](http://html5boilerplate.com)
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HTML5 Boilerplate is a professional front-end template for building fast,
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robust, and adaptable web apps or sites.
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This project is the product of many years of iterative development and combined
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community knowledge. It does not impose a specific development philosophy or
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framework, so you're free to architect your code in the way that you want.
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* Source: [https://github.com/h5bp/html5-boilerplate](https://github.com/h5bp/html5-boilerplate)
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* Homepage: [http://html5boilerplate.com](http://html5boilerplate.com)
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* Twitter: [@h5bp](http://twitter.com/h5bp)
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## Quick start
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Choose one of the following options:
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1. Download the latest stable release from
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[html5boilerplate.com](http://html5boilerplate.com/) or a custom build from
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[Initializr](http://www.initializr.com).
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2. Clone the git repo — `git clone
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https://github.com/h5bp/html5-boilerplate.git` - and checkout the tagged
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release you'd like to use.
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## Features
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* HTML5 ready. Use the new elements with confidence.
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* Cross-browser compatible (Chrome, Opera, Safari, Firefox 3.6+, IE6+).
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* Designed with progressive enhancement in mind.
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* Includes [Normalize.css](http://necolas.github.com/normalize.css/) for CSS
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normalizations and common bug fixes.
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* The latest [jQuery](http://jquery.com/) via CDN, with a local fallback.
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* The latest [Modernizr](http://modernizr.com/) build for feature detection.
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* IE-specific classes for easier cross-browser control.
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* Placeholder CSS Media Queries.
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* Useful CSS helpers.
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* Default print CSS, performance optimized.
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* Protection against any stray `console.log` causing JavaScript errors in
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IE6/7.
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* An optimized Google Analytics snippet.
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* Apache server caching, compression, and other configuration defaults for
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Grade-A performance.
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* Cross-domain Ajax and Flash.
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* "Delete-key friendly." Easy to strip out parts you don't need.
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* Extensive inline and accompanying documentation.
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## Documentation
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Take a look at the [documentation table of
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contents](/h5bp/html5-boilerplate/blob/master/doc/TOC.md). This
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documentation is bundled with the project, which makes it readily available for
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offline reading and provides a useful starting point for any documentation
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you want to write about your project.
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## Contributing
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Anyone and everyone is welcome to
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[contribute](/h5bp/html5-boilerplate/blob/master/CONTRIBUTING.md). Hundreds
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of developers have helped make the HTML5 Boilerplate what it is today.
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<?xml version="1.0"?>
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<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
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<cross-domain-policy>
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<!-- Read this: www.adobe.com/devnet/articles/crossdomain_policy_file_spec.html -->
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<!-- Most restrictive policy: -->
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<site-control permitted-cross-domain-policies="none"/>
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<!-- Least restrictive policy: -->
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<!--
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<site-control permitted-cross-domain-policies="all"/>
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<allow-access-from domain="*" to-ports="*" secure="false"/>
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<allow-http-request-headers-from domain="*" headers="*" secure="false"/>
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-->
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</cross-domain-policy>
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[HTML5 Boilerplate homepage](http://html5boilerplate.com)
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# HTML5 Boilerplate documentation:
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## Getting started
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* [Usage](usage.md) — Overview of the project contents.
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* [FAQ](faq.md) — Frequently asked questions, along with their answers.
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## The core of HTML5 Boilerplate
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* [HTML](html.md) — A guide to the default HTML.
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* [CSS](css.md) — A guide to the default CSS.
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* [JavaScript](js.md) — A guide to the default JavaScript.
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* [.htaccess](htaccess.md) — All about the Apache web server config (also see
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our [alternative server configs](https://github.com/h5bp/server-configs)).
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* [crossdomain.xml](crossdomain.md) — An introduction to making use of
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crossdomain requests.
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* [Everything else](misc.md).
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## Development
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* [Extending and customizing HTML5 Boilerplate](extend.md) — Going further with
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the boilerplate.
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## Related projects
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HTML5 Boilerplate has several related projects to help improve the performance
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of your site/app in various production environments.
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* [Server configs](https://github.com/h5bp/server-configs) — Configs for
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non-Apache servers.
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* [Node build script](https://github.com/h5bp/node-build-script) — A
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feature-rich [grunt](https://github.com/cowboy/grunt) plugin.
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* [Ant build script](https://github.com/h5bp/ant-build-script) — The original
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HTML5 Boilerplate build script.
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[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
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table of contents](TOC.md)
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# crossdomain.xml
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A cross-domain policy file is an XML document that grants a web client—such as
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Adobe Flash Player, Adobe Reader, etc., permission to handle data across
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multiple domains. When a client hosts content from a particular source domain
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and that content makes requests directed towards a domain other than its own,
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the remote domain would need to host a cross-domain policy file that grants
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access to the source domain, allowing the client to continue with the
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transaction. Policy files grant read access to data, permit a client to include
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custom headers in cross-domain requests, and are also used with sockets to
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grant permissions for socket-based connections.
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For full details, check out Adobe's article about the [cross-domain policy file
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specification](http://www.adobe.com/devnet/articles/crossdomain_policy_file_spec.html).
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[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
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table of contents](TOC.md)
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# The CSS
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The HTML5 Boilerplate starting CSS includes:
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* [Normalize.css](https://github.com/necolas/normalize.css).
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* Useful HTML5 Boilerplate defaults.
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* Common helpers.
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* Placeholder media queries.
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* Print styles.
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This starting CSS does not rely on the presence of conditional classnames,
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conditional style sheets, or Modernizr. It is ready to use whatever your
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development preferences happen to be.
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## Normalize.css
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Normalize.css is a modern, HTML5-ready alternative to CSS resets. It contains
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extensive inline documentation. Please refer to the [Normalize.css
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project](http://necolas.github.com/normalize.css/) for more information.
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## HTML5 Boilerplate defaults
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This project includes a handful of base styles that build upon Normalize.css.
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These include:
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* Basic typography settings to provide improved text readability by default.
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* Protection against unwanted `text-shadow` during text highlighting.
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* Tweaks to default image alignment, fieldsets, and textareas.
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* A pretty Chrome Frame prompt.
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You are free to modify or add to these base styles as your project requires.
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## Common helpers
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#### `.ir`
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Add the `.ir` class to any element you are applying image-replacement to. When
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replacing an element's content with an image, make sure to also set a specific
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`background-image: url(pathtoimage.png);`, `width`, and `height` so that your
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replacement image appears.
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#### `.hidden`
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Add the `.hidden` class to any elements that you want to hide from all
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presentations, including screen readers. It could be an element that will be
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populated later with JavaScript or an element you will hide with JavaScript. Do
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not use this for SEO keyword stuffing. That is just not cool.
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#### `.visuallyhidden`
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Add the `.visuallyhidden` class to hide text from browsers but make it
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available for screen readers. You can use this to hide text that is specific to
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screen readers but that other users should not see. [About invisible
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content](http://www.webaim.org/techniques/css/invisiblecontent/), [Hiding
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content for
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accessibility](http://snook.ca/archives/html_and_css/hiding-content-for-accessibility),
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[HTML5 Boilerplate
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issue/research](https://github.com/h5bp/html5-boilerplate/issues/194/).
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#### `.invisible`
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Add the `.invisible` class to any element you want to hide without affecting
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layout. When you use `display: none` an element is effectively removed from the
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layout. But in some cases you want the element to simply be invisible while
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remaining in the flow and not affecting the positioning of surrounding
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content.
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#### `.clearfix`
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Adding `.clearfix` to an element will ensure that it always fully contains its
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floated children. There have been many variants of the clearfix hack over the
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years, and there are other hacks that can also help you to contain floated
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children, but the HTML5 Boilerplate currently uses the [micro
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clearfix](http://nicolasgallagher.com/micro-clearfix-hack/).
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## Media Queries
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The boilerplate makes it easy to get started with a "Mobile First" and
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[Responsive Web
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Design](http://www.alistapart.com/articles/responsive-web-design/) approach to
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development. But it's worth remembering that there are [no silver
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bullets](http://www.cloudfour.com/css-media-query-for-mobile-is-fools-gold/).
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We include a placeholder Media Queries to build up your mobile styles for wider
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viewports and high-resolution displays. It's recommended that you adapt these
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Media Queries based on the content of your site rather than mirroring the fixed
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dimensions of specific devices.
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If you do not want to take a "Mobile First" approach, you can simply edit or
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remove these placeholder Media Queries. One possibility would be to work from
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wide viewports down and use `max-width` MQs instead, e.g., `@media only screen
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and (max-width: 480px)`.
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Take a look into the [Mobile
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Boilerplate](https://github.com/h5bp/mobile-boilerplate) for features that are
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useful when developing mobile wep apps.
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## Print styles
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* Print styles are inlined to [reduce the number of page
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requests](http://www.phpied.com/delay-loading-your-print-css/).
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* We strip all background colors and change the font color to dark gray and
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remove text-shadow. This is meant to help save printer ink.
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* Anchors do not need colors to indicate they are linked. They are underlined
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to indicate so.
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* Anchors and Abbreviations are expanded to indicate where users reading the
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printed page can refer to.
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* But we do not want to show link text for image replaced elements (given that
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they are primarily images).
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### Paged media styles
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* Paged media is supported only in a [few
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browsers](http://en.wikipedia.org/wiki/Comparison_of_layout_engines_%28Cascading_Style_Sheets%29#Grammar_and_rules).
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* Paged media support means browsers would know how to interpret instructions
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on breaking content into pages and on orphans/widows.
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* We use `page-break-inside: avoid;` to prevent an image and table row from
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being split into two different pages, so use the same `page-break-inside:
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avoid;` for that as well.
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* Headings should always appear with the text they are titles for. So, we
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ensure headings never appear in a different page than the text they describe
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by using `page-break-after: avoid;`.
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* We also apply a default margin for the page specified in `cm`.
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* We do not want [orphans and
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widows](http://en.wikipedia.org/wiki/Widows_and_orphans) to appear on pages
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you print. So, by defining `orphans: 3` and `widows: 3` you define the minimal
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number of words that every line should contain.
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[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
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table of contents](TOC.md)
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# Extend and customise HTML5 Boilerplate
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Here is some useful advice for how you can make your project with HTML5
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Boilerplate even better. We don't want to include it all by default, as not
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everything fits with everyone's needs.
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## DNS prefetching
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In short, DNS Prefetching is a method of informing the browser of domain names
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referenced on a site so that the client can resolve the DNS for those hosts,
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cache them, and when it comes time to use them, have a faster turn around on
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the request.
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### Implicit prefetches
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There is a lot of prefetching done for you automatically by the browser. When
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the browser encounters an anchor in your html that does not share the same
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domain name as the current location the browser requests, from the client OS,
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the IP address for this new domain. The client first checks its cache and
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then, lacking a cached copy, makes a request from a DNS server. These requests
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happen in the background and are not meant to block the rendering of the
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page.
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The goal of this is that when the foreign IP address is finally needed it will
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already be in the client cache and will not block the loading of the foreign
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content. Less requests result in faster page load times. The perception of this
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is increased on a mobile platform where DNS latency can be greater.
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#### Disable implicit prefetching
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```html
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<meta http-equiv="x-dns-prefetch-control" content="off">
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```
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Even with X-DNS-Prefetch-Control meta tag (or http header) browsers will still
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prefetch any explicit dns-prefetch links.
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**_WARNING:_** THIS MAY MAKE YOUR SITE SLOWER IF YOU RELY ON RESOURCES FROM
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FOREIGN DOMAINS.
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### Explicit prefetches
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Typically the browser only scans the HTML for foreign domains. If you have
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resources that are outside of your HTML (a javascript request to a remote
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server or a CDN that hosts content that may not be present on every page of
|
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your site, for example) then you can queue up a domain name to be prefetched.
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|
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```html
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<link rel="dns-prefetch" href="//example.com">
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<link rel="dns-prefetch" href="//ajax.googleapis.com">
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```
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|
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You can use as many of these as you need, but it's best if they are all
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immediately after the [Meta
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Charset](https://developer.mozilla.org/en/HTML/Element/meta#attr-charset)
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element (which should go right at the top of the `head`), so the browser can
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act on them ASAP.
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#### Common Prefetch Links
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Amazon S3:
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```html
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<link rel="dns-prefetch" href="//s3.amazonaws.com">
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```
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Google APIs:
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```html
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<link rel="dns-prefetch" href="//ajax.googleapis.com">
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```
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Microsoft Ajax Content Delivery Network:
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|
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```html
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<link rel="dns-prefetch" href="//ajax.microsoft.com">
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<link rel="dns-prefetch" href="//ajax.aspnetcdn.com">
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```
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|
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### Browser support for DNS prefetching
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Chrome, Firefox 3.5+, Safari 5+, Opera (Unknown), IE 9 (called "Pre-resolution"
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on blogs.msdn.com)
|
||||
|
||||
### Further reading about DNS prefetching
|
||||
|
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* https://developer.mozilla.org/En/Controlling_DNS_prefetching
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* http://dev.chromium.org/developers/design-documents/dns-prefetching
|
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* http://www.apple.com/safari/whats-new.html
|
||||
* http://blogs.msdn.com/b/ie/archive/2011/03/17/internet-explorer-9-network-performance-improvements.aspx
|
||||
* http://dayofjs.com/videos/22158462/web-browsers_alex-russel
|
||||
|
||||
|
||||
## Search
|
||||
|
||||
### Direct search spiders to your sitemap
|
||||
|
||||
[Learn how to make a sitemap](http://www.sitemaps.org/protocol.php)
|
||||
|
||||
```html
|
||||
<link rel="sitemap" type="application/xml" title="Sitemap" href="/sitemap.xml">
|
||||
```
|
||||
|
||||
### Hide pages from search engines
|
||||
|
||||
According to Heather Champ, former community manager at Flickr, you should not
|
||||
allow search engines to index your "Contact Us" or "Complaints" page if you
|
||||
value your sanity. This is an HTML-centric way of achieving that.
|
||||
|
||||
```html
|
||||
<meta name="robots" content="noindex">
|
||||
```
|
||||
|
||||
**_WARNING:_** DO NOT INCLUDE ON PAGES THAT SHOULD APPEAR IN SEARCH ENGINES.
|
||||
|
||||
### Firefox and IE Search Plugins
|
||||
|
||||
Sites with in-site search functionality should be strongly considered for a
|
||||
browser search plugin. A "search plugin" is an XML file which defines how your
|
||||
plugin behaves in the browser. [How to make a browser search
|
||||
plugin](http://www.google.com/search?ie=UTF-8&q=how+to+make+browser+search+plugin).
|
||||
|
||||
```html
|
||||
<link rel="search" title="" type="application/opensearchdescription+xml" href="">
|
||||
```
|
||||
|
||||
|
||||
## Internet Explorer
|
||||
|
||||
### Prompt users to switch to "Desktop Mode" in IE10 Metro
|
||||
|
||||
IE10 does not support plugins, such as Flash, in Metro mode. If your site
|
||||
requires plugins, you can let users know that via the X-UA-Compatible meta
|
||||
element, which will prompt them to switch to Desktop Mode.
|
||||
|
||||
```html
|
||||
<meta http-equiv="X-UA-Compatible" content="requiresActiveX=true">
|
||||
```
|
||||
|
||||
Here's what it looks like alongside H5BP's default X-UA-Compatible values:
|
||||
|
||||
```html
|
||||
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1,requiresActiveX=true">
|
||||
```
|
||||
|
||||
You can find more information in [Microsoft's IEBlog post about prompting for
|
||||
plugin use in IE10 Metro
|
||||
Mode](http://blogs.msdn.com/b/ie/archive/2012/01/31/web-sites-and-a-plug-in-free-web.aspx).
|
||||
|
||||
### IE Pinned Sites (IE9+)
|
||||
|
||||
Enabling your application for pinning will allow IE9 users to add it to their
|
||||
Windows Taskbar and Start Menu. This comes with a range of new tools that you
|
||||
can easily configure with the elements below. See more [documentation on IE9
|
||||
Pinned Sites](http://msdn.microsoft.com/en-us/library/gg131029.aspx).
|
||||
|
||||
### Name the Pinned Site for Windows
|
||||
|
||||
Without this rule, Windows will use the page title as the name for your
|
||||
application.
|
||||
|
||||
```html
|
||||
<meta name="application-name" content="Sample Title">
|
||||
```
|
||||
|
||||
### Give your Pinned Site a tooltip
|
||||
|
||||
You know — a tooltip. A little textbox that appears when the user holds their
|
||||
mouse over your Pinned Site's icon.
|
||||
|
||||
```html
|
||||
<meta name="msapplication-tooltip" content="A description of what this site does.">
|
||||
```
|
||||
|
||||
### Set a default page for your Pinned Site
|
||||
|
||||
If the site should go to a specific URL when it is pinned (such as the
|
||||
homepage), enter it here. One idea is to send it to a special URL so you can
|
||||
track the number of pinned users, like so:
|
||||
`http://www.example.com/index.html?pinned=true`
|
||||
|
||||
```html
|
||||
<meta name="msapplication-starturl" content="http://www.example.com/index.html?pinned=true">
|
||||
```
|
||||
|
||||
### Recolor IE's controls manually for a Pinned Site
|
||||
|
||||
IE9+ will automatically use the overall color of your Pinned Site's favicon to
|
||||
shade its browser buttons. UNLESS you give it another color here. Only use
|
||||
named colors (`red`) or hex colors (`#ff0000`).
|
||||
|
||||
```html
|
||||
<meta name="msapplication-navbutton-color" content="#ff0000">
|
||||
```
|
||||
|
||||
### Manually set the window size of a Pinned Site
|
||||
|
||||
If the site should open at a certain window size once pinned, you can specify
|
||||
the dimensions here. It only supports static pixel dimensions. 800x600
|
||||
minimum.
|
||||
|
||||
```html
|
||||
<meta name="msapplication-window" content="width=800;height=600">
|
||||
```
|
||||
|
||||
### Jump List "Tasks" for Pinned Sites
|
||||
|
||||
Add Jump List Tasks that will appear when the Pinned Site's icon gets a
|
||||
right-click. Each Task goes to the specified URL, and gets its own mini icon
|
||||
(essentially a favicon, a 16x16 .ICO). You can add as many of these as you
|
||||
need.
|
||||
|
||||
```html
|
||||
<meta name="msapplication-task" content="name=Task 1;action-uri=http://host/Page1.html;icon-uri=http://host/icon1.ico">
|
||||
<meta name="msapplication-task" content="name=Task 2;action-uri=http://microsoft.com/Page2.html;icon-uri=http://host/icon2.ico">
|
||||
```
|
||||
|
||||
### (Windows 8) High quality visuals for Pinned Sites
|
||||
|
||||
Windows 8 adds the ability for you to provide a PNG tile image and specify the
|
||||
tile's background color. [Full details on the IE
|
||||
blog](http://blogs.msdn.com/b/ie/archive/2012/06/08/high-quality-visuals-for-pinned-sites-in-windows-8.aspx).
|
||||
|
||||
* Create a 144x144 image of your site icon, filling all of the canvas, and
|
||||
using a transparent background.
|
||||
* Save this image as a 32-bit PNG and optimize it without reducing
|
||||
colour-depth. It can be named whatever you want (e.g. `metro-tile.png`).
|
||||
* To reference the tile and its color, add the HTML `meta` elements described
|
||||
in the IE Blog post.
|
||||
|
||||
### (Windows 8) Badges for Pinned Sites
|
||||
|
||||
IE10 will poll an XML document for badge information to display on your app's
|
||||
tile in the Start screen. The user will be able to receive these badge updates
|
||||
even when your app isn't actively running. The badge's value can be a number,
|
||||
or one of a predefined list of glyphs.
|
||||
|
||||
* [Tutorial on IEBlog with link to badge XML schema](http://blogs.msdn.com/b/ie/archive/2012/04/03/pinned-sites-in-windows-8.aspx)
|
||||
* [Available badge values](http://msdn.microsoft.com/en-us/library/ie/br212849.aspx)
|
||||
|
||||
```html
|
||||
<meta name="msapplication-badge" value="frequency=NUMBER_IN_MINUTES;polling-uri=http://www.example.com/path/to/file.xml">
|
||||
```
|
||||
|
||||
### Suppress IE6 image toolbar
|
||||
|
||||
Kill IE6's pop-up-on-mouseover toolbar for images that can interfere with
|
||||
certain designs and be pretty distracting in general.
|
||||
|
||||
```html
|
||||
<meta http-equiv="imagetoolbar" content="false">
|
||||
```
|
||||
|
||||
|
||||
## Social Networks
|
||||
|
||||
### Facebook Open Graph data
|
||||
|
||||
You can control the information that Facebook and others display when users
|
||||
share your site. Below are just the most basic data points you might need. For
|
||||
specific content types (including "website"), see [Facebook's built-in Open
|
||||
Graph content
|
||||
templates](https://developers.facebook.com/docs/opengraph/objects/builtin/).
|
||||
Take full advantage of Facebook's support for complex data and activity by
|
||||
following the [Open Graph
|
||||
tutorial](https://developers.facebook.com/docs/opengraph/tutorial/).
|
||||
|
||||
```html
|
||||
<meta property="og:title" content="">
|
||||
<meta property="og:description" content="">
|
||||
<meta property="og:image" content="">
|
||||
```
|
||||
|
||||
### Twitter Cards
|
||||
|
||||
Twitter provides a snippet specification that serves a similar purpose to Open
|
||||
Graph. In fact, Twitter will use Open Graph when Cards is not available. Note
|
||||
that, as of this writing, Twitter requires that app developers activate Cards
|
||||
on a per-domain basis. You can read more about the various snippet formats
|
||||
and application process in the [official Twitter Cards
|
||||
documentation](https://dev.twitter.com/docs/cards).
|
||||
|
||||
```html
|
||||
<meta name="twitter:card" content="summary">
|
||||
<meta name="twitter:site" content="@site_account">
|
||||
<meta name="twitter:creator" content="@individual_account">
|
||||
<meta name="twitter:url" content="http://www.example.com/path/to/page.html">
|
||||
<meta name="twitter:title" content="">
|
||||
<meta name="twitter:description" content="">
|
||||
<meta name="twitter:image" content="http://www.example.com/path/to/image.jpg">
|
||||
```
|
||||
|
||||
|
||||
## URLs
|
||||
|
||||
### Canonical URL
|
||||
|
||||
Signal to search engines and others "Use this URL for this page!" Useful when
|
||||
parameters after a `#` or `?` is used to control the display state of a page.
|
||||
`http://www.example.com/cart.html?shopping-cart-open=true` can be indexed as
|
||||
the cleaner, more accurate `http://www.example.com/cart.html`.
|
||||
|
||||
```html
|
||||
<link rel="canonical" href="">
|
||||
```
|
||||
|
||||
### Official shortlink
|
||||
|
||||
Signal to the world "This is the shortened URL to use this page!" Poorly
|
||||
supported at this time. Learn more by reading the [article about shortlinks on
|
||||
the Microformats wiki](http://microformats.org/wiki/rel-shortlink).
|
||||
|
||||
```html
|
||||
<link rel="shortlink" href="h5bp.com">
|
||||
```
|
||||
|
||||
|
||||
## News Feeds
|
||||
|
||||
### RSS
|
||||
|
||||
Have an RSS feed? Link to it here. Want to [learn how to write an RSS feed from
|
||||
scratch](http://www.rssboard.org/rss-specification)?
|
||||
|
||||
```html
|
||||
<link rel="alternate" type="application/rss+xml" title="RSS" href="/rss.xml">
|
||||
```
|
||||
|
||||
### Atom
|
||||
|
||||
Atom is similar to RSS, and you might prefer to use it instead of or in
|
||||
addition to it. [See what Atom's all
|
||||
about](http://www.atomenabled.org/developers/syndication/).
|
||||
|
||||
```html
|
||||
<link rel="alternate" type="application/atom+xml" title="Atom" href="/atom.xml">
|
||||
```
|
||||
|
||||
### Pingbacks
|
||||
|
||||
Your server may be notified when another site links to yours. The href
|
||||
attribute should contain the location of your pingback service.
|
||||
|
||||
```html
|
||||
<link rel="pingback" href="">
|
||||
```
|
||||
|
||||
* High-level explanation: http://codex.wordpress.org/Introduction_to_Blogging#Pingbacks
|
||||
* Step-by-step example case: http://www.hixie.ch/specs/pingback/pingback-1.0#TOC5
|
||||
* PHP pingback service: http://blog.perplexedlabs.com/2009/07/15/xmlrpc-pingbacks-using-php/
|
||||
|
||||
|
||||
## App Stores
|
||||
|
||||
### Install a Chrome Web Store app
|
||||
|
||||
Users can install a Chrome app directly from your website, as long as the app
|
||||
and site have been associated via Google's Webmaster Tools. Read more on
|
||||
[Chrome Web Store's Inline Installation
|
||||
docs](https://developers.google.com/chrome/web-store/docs/inline_installation).
|
||||
|
||||
```html
|
||||
<link rel="chrome-webstore-item" href="https://chrome.google.com/webstore/detail/APP_ID">
|
||||
```
|
||||
|
||||
### Smart App Banners in iOS 6 Safari
|
||||
|
||||
Stop bothering everyone with gross modals advertising your entry in the App Store.
|
||||
This bit of code will unintrusively allow the user the option to download your iOS
|
||||
app, or open it with some data about the user's current state on the website.
|
||||
|
||||
```html
|
||||
<meta name="apple-itunes-app" content="app-id=APP_ID,app-argument=SOME_TEXT">
|
||||
```
|
||||
|
||||
## Google Analytics augments
|
||||
|
||||
### More tracking settings
|
||||
|
||||
The [optimized Google Analytics
|
||||
snippet](http://mathiasbynens.be/notes/async-analytics-snippet) included with
|
||||
HTML5 Boilerplate includes something like this:
|
||||
|
||||
```js
|
||||
var _gaq = [['_setAccount', 'UA-XXXXX-X'], ['_trackPageview']];
|
||||
```
|
||||
|
||||
In case you need more settings, just extend the array literal instead of
|
||||
[`.push()`ing to the
|
||||
array](http://mathiasbynens.be/notes/async-analytics-snippet#dont-push-it)
|
||||
afterwards:
|
||||
|
||||
```js
|
||||
var _gaq = [['_setAccount', 'UA-XXXXX-X'], ['_trackPageview'], ['_setAllowAnchor', true]];
|
||||
```
|
||||
|
||||
### Anonymize IP addresses
|
||||
|
||||
In some countries, no personal data may be transferred outside jurisdictions
|
||||
that do not have similarly strict laws (i.e. from Germany to outside the EU).
|
||||
Thus a webmaster using the Google Analytics script may have to ensure that no
|
||||
personal (trackable) data is transferred to the US. You can do that with [the
|
||||
`_gat.anonymizeIp`
|
||||
option](http://code.google.com/apis/analytics/docs/gaJS/gaJSApi_gat.html#_gat._anonymizeIp).
|
||||
In use it looks like this:
|
||||
|
||||
```js
|
||||
var _gaq = [['_setAccount', 'UA-XXXXX-X'], ['_gat._anonymizeIp'], ['_trackPageview']];
|
||||
```
|
||||
|
||||
### Track jQuery AJAX requests in Google Analytics
|
||||
|
||||
An article by @JangoSteve explains how to [track jQuery AJAX requests in Google
|
||||
Analytics](http://www.alfajango.com/blog/track-jquery-ajax-requests-in-google-analytics/).
|
||||
|
||||
Add this to `plugins.js`:
|
||||
|
||||
```js
|
||||
/*
|
||||
* Log all jQuery AJAX requests to Google Analytics
|
||||
* See: http://www.alfajango.com/blog/track-jquery-ajax-requests-in-google-analytics/
|
||||
*/
|
||||
if (typeof _gaq !== "undefined" && _gaq !== null) {
|
||||
$(document).ajaxSend(function(event, xhr, settings){
|
||||
_gaq.push(['_trackPageview', settings.url]);
|
||||
});
|
||||
}
|
||||
```
|
||||
|
||||
### Track JavaScript errors in Google Analytics
|
||||
|
||||
Add this function after `_gaq` is defined:
|
||||
|
||||
```js
|
||||
(function(window){
|
||||
var undefined,
|
||||
link = function (href) {
|
||||
var a = window.document.createElement('a');
|
||||
a.href = href;
|
||||
return a;
|
||||
};
|
||||
window.onerror = function (message, file, row) {
|
||||
var host = link(file).hostname;
|
||||
_gaq.push([
|
||||
'_trackEvent',
|
||||
(host == window.location.hostname || host == undefined || host == '' ? '' : 'external ') + 'error',
|
||||
message, file + ' LINE: ' + row, undefined, undefined, true
|
||||
]);
|
||||
};
|
||||
}(window));
|
||||
```
|
||||
|
||||
### Track page scroll
|
||||
|
||||
Add this function after `_gaq` is defined:
|
||||
|
||||
```js
|
||||
$(function(){
|
||||
var isDuplicateScrollEvent,
|
||||
scrollTimeStart = new Date,
|
||||
$window = $(window),
|
||||
$document = $(document),
|
||||
scrollPercent;
|
||||
|
||||
$window.scroll(function() {
|
||||
scrollPercent = Math.round(100 * ($window.height() + $window.scrollTop())/$document.height());
|
||||
if (scrollPercent > 90 && !isDuplicateScrollEvent) { //page scrolled to 90%
|
||||
isDuplicateScrollEvent = 1;
|
||||
_gaq.push(['_trackEvent', 'scroll',
|
||||
'Window: ' + $window.height() + 'px; Document: ' + $document.height() + 'px; Time: ' + Math.round((new Date - scrollTimeStart )/1000,1) + 's',
|
||||
undefined, undefined, true
|
||||
]);
|
||||
}
|
||||
});
|
||||
});
|
||||
```
|
||||
|
||||
|
||||
## Miscellaneous
|
||||
|
||||
* Use [HTML5
|
||||
polyfills](https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills).
|
||||
|
||||
* Use [Microformats](http://microformats.org/wiki/Main_Page) (via
|
||||
[microdata](http://microformats.org/wiki/microdata)) for optimum search
|
||||
results
|
||||
[visibility](http://googlewebmastercentral.blogspot.com/2009/05/introducing-rich-snippets.html).
|
||||
|
||||
* If you're building a web app you may want [native style momentum scrolling in
|
||||
iOS5](http://johanbrook.com/browsers/native-momentum-scrolling-ios-5/) using
|
||||
`-webkit-overflow-scrolling: touch`.
|
||||
|
||||
* Avoid development/stage websites "leaking" into SERPs (search engine results
|
||||
page) by [implementing X-Robots-tag
|
||||
headers](https://github.com/h5bp/html5-boilerplate/issues/804).
|
||||
|
||||
* Screen readers currently have less-than-stellar support for HTML5 but the JS
|
||||
script [accessifyhtml5.js](https://github.com/yatil/accessifyhtml5.js) can
|
||||
help increase accessibility by adding ARIA roles to HTML5 elements.
|
||||
|
||||
|
||||
*Many thanks to [Brian Blakely](https://github.com/brianblakely) for
|
||||
contributing much of this information.*
|
@ -1,77 +0,0 @@
|
||||
[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
|
||||
table of contents](TOC.md)
|
||||
|
||||
# Frequently asked questions
|
||||
|
||||
### Why is the URL for jQuery without "http"?
|
||||
|
||||
This is an intentional use of [protocol-relative
|
||||
URLs](http://paulirish.com/2010/the-protocol-relative-url/)
|
||||
|
||||
**N.B.** Using a protocol-relative URL for files that exist on a CDN is
|
||||
problematic when you try to view your local files directly in the browser. The
|
||||
browser will attempt to fetch the file from your local file system. We
|
||||
recommend that you use a local server to test your pages (or Dropbox). This can
|
||||
be done using Python by running `python -m SimpleHTTPServer` from your local
|
||||
directory, using Ruby by installing and running
|
||||
[asdf](https://rubygems.org/gems/asdf), and by installing any one of XAMPP,
|
||||
MAMP, or WAMP.
|
||||
|
||||
|
||||
### Why don't you automatically load the latest version of jQuery from the Google CDN?
|
||||
|
||||
1. The latest version of jQuery may not be compatible with the existing
|
||||
plugins/code on the site. Version updating should be an intentional
|
||||
decision.
|
||||
2. The latest version has a very short `max-age=3600` compares to the specific
|
||||
version of `max-age=31536000`, which means you won't get the benefits of
|
||||
long-term caching.
|
||||
|
||||
|
||||
### Why is the Google Analytics code at the bottom? Google recommends it be placed the `head`.
|
||||
|
||||
The advantage to placing it in the `head` is that you will track a user's
|
||||
pageview even if they leave the page before it has been fully loaded. However,
|
||||
putting the code at the bottom keeps all the scripts together and reinforces
|
||||
that scripts at the bottom are the right move.
|
||||
|
||||
|
||||
### How can I integrate [Twitter Bootstrap](http://twitter.github.com/bootstrap/) with HTML5 Boilerplate?
|
||||
|
||||
You can use [Initializr](http://initializr.com) to create a custom build that
|
||||
includes HTML5 Boilerplate with Twitter Bootstrap.
|
||||
|
||||
Read more about how [HTML5 Boilerplate and Twitter Bootstrap complement each
|
||||
other](http://www.quora.com/Is-Bootstrap-a-complement-OR-an-alternative-to-HTML5-Boilerplate-or-viceversa/answer/Nicolas-Gallagher).
|
||||
|
||||
|
||||
### How do I prevent phone numbers looking twice as large and having a Skype highlight?
|
||||
|
||||
If this is occurring, it is because a user has the Skype browser extension
|
||||
installed.
|
||||
|
||||
Use the following CSS to prevent Skype from formatting the numbers on your
|
||||
page:
|
||||
|
||||
```css
|
||||
span.skype_pnh_container {
|
||||
display: none !important;
|
||||
}
|
||||
|
||||
span.skype_pnh_print_container {
|
||||
display: inline !important;
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
### Do I need to upgrade my sites each time a new version of HTML5 Boilerplate is released?
|
||||
|
||||
No. You don't normally replace the foundations of a house once it has been
|
||||
built. There is nothing stopping you from trying to work in the latest changes
|
||||
but you'll have to assess the costs/benefits of doing so.
|
||||
|
||||
|
||||
### Where can I get help for support questions?
|
||||
|
||||
Please ask for help on
|
||||
[StackOverflow](http://stackoverflow.com/questions/tagged/html5boilerplate).
|
@ -1,333 +0,0 @@
|
||||
[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
|
||||
table of contents](TOC.md)
|
||||
|
||||
# .htaccess
|
||||
|
||||
In Apache HTTP server, `.htaccess` (hypertext access) is the configuration file
|
||||
that allows for web server configuration. HTML5 Boilerplate includes a number
|
||||
of best practice server rules for making web pages fast and secure, these rules
|
||||
can be applied in the `.htaccess` file.
|
||||
|
||||
**First, you'll want to have these modules enabled for optimum performance:**
|
||||
|
||||
* `mod_setenvif.c` (setenvif_module)
|
||||
* `mod_headers.c` (headers_module)
|
||||
* `mod_deflate.c` (deflate_module)
|
||||
* `mod_filter.c` (filter_module)
|
||||
* `mod_expires.c` (expires_module)
|
||||
* `mod_rewrite.c` (rewrite_module)
|
||||
|
||||
|
||||
## On Windows
|
||||
|
||||
You've got a couple of options that depend on how you installed Apache.
|
||||
|
||||
1. **WampServer**. This is by far the simplest option. If you have installed
|
||||
WampServer just click on the icon in the task bar, hover over the Apache
|
||||
section in the menu that comes up and then hover over the modules section.
|
||||
You will be presented with a list of modules. Simply click on a module name
|
||||
to enable it (or disable it if it is already enabled). A check mark next to
|
||||
a module indicates that it is enabled. WampServer will automatically restart
|
||||
the Apache service after you enable a module.
|
||||
|
||||
2. **Manually editing `httpd.conf`**. This assumes that you have manually
|
||||
installed Apache. You will need to locate the `httpd.conf` file which is
|
||||
normally in the `conf` folder in the folder where you installed Apache (for
|
||||
example `C:\apache\conf\httpd.conf`). Open up this file in a text editor. Near
|
||||
the top (after a bunch of comments) you will see a long list of modules. Check
|
||||
to make sure that the modules listed above are not commented out. If they
|
||||
are, go ahead and uncomment them and restart Apache.
|
||||
|
||||
That's it, you're done!
|
||||
|
||||
|
||||
## On Linux
|
||||
|
||||
These instructions should work on any distribution where `apt-get` has been
|
||||
used to install Apache.
|
||||
|
||||
1. Open up a terminal and type the following command. Enter your password when
|
||||
prompted.
|
||||
|
||||
`sudo a2enmod setenvif headers deflate filter expires rewrite include`
|
||||
|
||||
1. Restart apache by using the following command so the new configuration takes
|
||||
effect.
|
||||
|
||||
`sudo /etc/init.d/apache2 restart`
|
||||
|
||||
That's it, you're done!
|
||||
|
||||
|
||||
## On Mac
|
||||
|
||||
1. **MAMP PRO**. On the main screen, click the `Apache` tab and ensure that all
|
||||
the required modules listed above are 'checked', indicating they are
|
||||
enabled.
|
||||
|
||||
2. **MAMP**. Locate the `httpd.conf` file, which is typically found in
|
||||
`/Applications/MAMP/conf/apache/httpd.conf`. Open the file in a text editor
|
||||
and uncomment all of the required modules listed above. Once you have done so,
|
||||
reset MAMP.
|
||||
|
||||
3. **XAMPP**. Follow the same steps as for MAMP, but look for `httpd.conf` in
|
||||
`/Applications/XAMPP/etc/httpd.conf`.
|
||||
|
||||
|
||||
## Security
|
||||
|
||||
Do not turn off your ServerSignature (i.e., the `Server:` HTTP header). Serious
|
||||
attackers can use other kinds of fingerprinting methods to figure out the
|
||||
actual server and components running behind a port. Instead, as a site owner,
|
||||
you should keep track of what's listening on ports on hosts that you control.
|
||||
Run a periodic scanner to make sure nothing suspicious is running on a host you
|
||||
control, and use the ServerSignature to determine if this is the web server and
|
||||
version that you expect.
|
||||
|
||||
|
||||
## Performance
|
||||
|
||||
### Configure ETags
|
||||
|
||||
```apache
|
||||
FileETag None
|
||||
```
|
||||
|
||||
Entity tags (ETags) is a mechanism that web servers and browsers use to
|
||||
determine whether the component in the browser's cache matches the one on the
|
||||
origin server. (An "entity" is another word for "component": images, scripts,
|
||||
stylesheets, etc.) ETags were added to provide a mechanism for validating
|
||||
entities that is more flexible than the last-modified date. An `ETag` is a
|
||||
string that uniquely identifies a specific version of a component. The only
|
||||
format constraints are that the string be quoted. The origin server specifies
|
||||
the component's `ETag` using the `ETag` response header.
|
||||
|
||||
```http
|
||||
HTTP/1.1 200 OK
|
||||
Last-Modified: Tue, 12 Dec 2006 03:03:59 GMT
|
||||
ETag: "10c24bc-4ab-457e1c1f"
|
||||
Content-Length: 12195
|
||||
```
|
||||
|
||||
Later, if the browser has to validate a component, it uses the `If-None-Match`
|
||||
header to pass the `ETag` back to the origin server. If the ETags match, a 304
|
||||
status code is returned reducing the response by 12195 bytes for this
|
||||
example.
|
||||
|
||||
```http
|
||||
GET /i/yahoo.gif HTTP/1.1
|
||||
Host: us.yimg.com
|
||||
If-Modified-Since: Tue, 12 Dec 2006 03:03:59 GMT
|
||||
If-None-Match: "10c24bc-4ab-457e1c1f"
|
||||
HTTP/1.1 304 Not Modified
|
||||
```
|
||||
|
||||
The problem with ETags is that they typically are constructed using attributes
|
||||
that make them unique to a specific server hosting a site. ETags won't match
|
||||
when a browser gets the original component from one server and later tries to
|
||||
validate that component on a different server, a situation that is all too
|
||||
common on web sites that use a cluster of servers to handle requests. By
|
||||
default, both Apache and IIS embed data in the ETag that dramatically reduces
|
||||
the odds of the validity test succeeding on web sites with multiple servers.
|
||||
|
||||
The ETag format for Apache 1.3 and 2.x is inode-size-timestamp. Although a
|
||||
given file may reside in the same directory across multiple servers, and have
|
||||
the same file size, permissions, timestamp, etc., its inode is different from
|
||||
one server to the next.
|
||||
|
||||
IIS 5.0 and 6.0 have a similar issue with ETags. The format for ETags on IIS is
|
||||
Filetimestamp:ChangeNumber. A ChangeNumber is a counter used to track
|
||||
configuration changes to IIS. It's unlikely that the ChangeNumber is the same
|
||||
across all IIS servers behind a web site.
|
||||
|
||||
The end result is ETags generated by Apache and IIS for the exact same
|
||||
component won't match from one server to another. If the ETags don't match, the
|
||||
user doesn't receive the small, fast 304 response that ETags were designed for;
|
||||
instead, they'll get a normal 200 response along with all the data for the
|
||||
component. If you host your web site on just one server, this isn't a problem.
|
||||
But if you have multiple servers hosting your web site, and you're using Apache
|
||||
or IIS with the default ETag configuration, your users are getting slower
|
||||
pages, your servers have a higher load, you're consuming greater bandwidth, and
|
||||
proxies aren't caching your content efficiently. Even if your components have a
|
||||
far future Expires header, a conditional GET request is still made whenever the
|
||||
user hits Reload or Refresh.
|
||||
|
||||
If you're not taking advantage of the flexible validation model that ETags
|
||||
provide, it's better to just remove the ETag altogether. The Last-Modified
|
||||
header validates based on the component's timestamp. And removing the ETag
|
||||
reduces the size of the HTTP headers in both the response and subsequent
|
||||
requests. This Microsoft Support article describes how to remove ETags. In
|
||||
Apache, this is done by simply adding the above line to your Apache
|
||||
configuration file.
|
||||
|
||||
|
||||
### Gzip Components
|
||||
|
||||
Compression reduces response times by reducing the size of the HTTP response.
|
||||
|
||||
Starting with HTTP/1.1, web clients indicate support for compression with the
|
||||
Accept-Encoding header in the HTTP request.
|
||||
|
||||
```
|
||||
Accept-Encoding: gzip, deflate
|
||||
```
|
||||
|
||||
If the web server sees this header in the request, it may compress the response
|
||||
using one of the methods listed by the client. The web server notifies the web
|
||||
client of this via the Content-Encoding header in the response.
|
||||
|
||||
```
|
||||
Content-Encoding: gzip
|
||||
```
|
||||
|
||||
Gzip is the most popular and effective compression method at this time. It was
|
||||
developed by the GNU project and standardized by RFC 1952. The only other
|
||||
compression format you're likely to see is deflate, but it's less effective and
|
||||
less popular.
|
||||
|
||||
Gzipping generally reduces the response size by about 70%. Approximately 90% of
|
||||
today's Internet traffic travels through browsers that claim to support gzip.
|
||||
If you use Apache, the module configuring gzip depends on your version: Apache
|
||||
1.3 uses `mod_gzip` while Apache 2.x uses `mod_deflate`.
|
||||
|
||||
There are known issues with browsers and proxies that may cause a mismatch in
|
||||
what the browser expects and what it receives with regard to compressed
|
||||
content. Fortunately, these edge cases are dwindling as the use of older
|
||||
browsers drops off. The Apache modules help out by adding appropriate Vary
|
||||
response headers automatically.
|
||||
|
||||
Servers choose what to gzip based on file type, but are typically too limited
|
||||
in what they decide to compress. Most web sites gzip their HTML documents. It's
|
||||
also worthwhile to gzip your scripts and stylesheets, but many web sites miss
|
||||
this opportunity. In fact, it's worthwhile to compress any text response
|
||||
including XML and JSON. Image and PDF files should not be gzipped because they
|
||||
are already compressed. Trying to gzip them not only wastes CPU but can
|
||||
potentially increase file sizes.
|
||||
|
||||
Gzipping as many appropriate file types as possible is an easy way to reduce
|
||||
page weight and accelerate the user experience.
|
||||
|
||||
|
||||
### Cache busting
|
||||
|
||||
A first-time visitor to your page may have to make several HTTP requests, but
|
||||
by using the Expires header you make those components cacheable. This avoids
|
||||
unnecessary HTTP requests on subsequent page views. Expires headers are most
|
||||
often used with images, but they should be used on all components including
|
||||
scripts, stylesheets, etc.
|
||||
|
||||
Traditionally, if you use a far future Expires header you have to change the
|
||||
component's filename whenever the component changes.
|
||||
|
||||
The H5BP `.htaccess` has built-in filename cache busting. To use it, uncomment
|
||||
the relevant lines in the `.htaccess` file.
|
||||
|
||||
Doing so will route all requests for `/path/filename.20120101.ext` to
|
||||
`/path/filename.ext`. To use this, just add a time-stamp number (or your own
|
||||
numbered versioning system) into your resource filenames in your HTML source
|
||||
whenever you update those resources.
|
||||
|
||||
#### Example:
|
||||
|
||||
```html
|
||||
<script src="/js/myscript.20120305.js"></script>
|
||||
<script src="/js/jqueryplugin.45.js"></script>
|
||||
<link rel="stylesheet" href="css/somestyle.49559939932.css">
|
||||
<link rel="stylesheet" href="css/anotherstyle.2.css">
|
||||
```
|
||||
|
||||
**N.B. You do not have to rename the resource on the filesystem.** All you have
|
||||
to do is add the timestamp number to the filename in your HTML source. The
|
||||
`.htaccess` directive will serve up the proper file.
|
||||
|
||||
Traditional cache busting involved adding a query string to the end of your
|
||||
JavaScript or CSS filename whenever you updated it.
|
||||
|
||||
```html
|
||||
<script src="/js/all.js?v=12"></script>
|
||||
```
|
||||
|
||||
However, as [Steve Souders](http://stevesouders.com/) explains in [*Revving
|
||||
Filenames: don’t use
|
||||
querystring*](http://www.stevesouders.com/blog/2008/08/23/revving-filenames-dont-use-querystring/),
|
||||
the query string approach is not always reliable for clients behind a Squid
|
||||
Proxy Server.
|
||||
|
||||
|
||||
## Trailing slash redirects
|
||||
|
||||
Trailing slash redirects can be done by adding one of the options below in `.htaccess`.
|
||||
|
||||
### Option 1
|
||||
Rewrite `domain.com/foo` -> `domain.com/foo/`.
|
||||
|
||||
```apache
|
||||
RewriteCond %{REQUEST_FILENAME} !-f
|
||||
RewriteCond %{REQUEST_URI} !(\.[a-zA-Z0-9]{1,5}|/|#(.*))$
|
||||
RewriteRule ^(.*)$ $1/ [R=301,L]
|
||||
```
|
||||
|
||||
### Option 2
|
||||
Rewrite `domain.com/foo/` -> `domain.com/foo`
|
||||
|
||||
```apache
|
||||
RewriteRule ^(.*)/$ $1 [R=301,L]
|
||||
```
|
||||
|
||||
Here are some tips to show you how to integrate the rewrite rules with
|
||||
different CMS tools. There are four areas you need to look out for:
|
||||
|
||||
### 1. Keep a backup
|
||||
|
||||
If you use trailing slash redirects on an existing site, always keep a backup
|
||||
of your `.htaccess` and test thoroughly on your staging server before using it on
|
||||
a production server.
|
||||
|
||||
### 2. Don't replace existing rules, merge
|
||||
|
||||
For example, if you use CodeIgniter you may have existing URL rewrite rules like:
|
||||
|
||||
```apache
|
||||
RewriteCond %{REQUEST_FILENAME} !-f
|
||||
RewriteCond %{REQUEST_FILENAME} !-d
|
||||
RewriteRule ^(.*)$ index.php/$1
|
||||
```
|
||||
|
||||
Merge the above with H5BP rules below:
|
||||
|
||||
```apache
|
||||
RewriteCond %{REQUEST_FILENAME} !-f
|
||||
RewriteCond %{REQUEST_URI} !(\.[a-zA-Z0-9]{1,5}|/|#(.*))$
|
||||
RewriteRule ^(.*)$ $1/ [R=301,L]
|
||||
```
|
||||
|
||||
### 3. Be careful of the order
|
||||
|
||||
Make sure you test thoroughly in your staging environment. For the above
|
||||
example, the order is add trailing slash first, and add your existing rule
|
||||
after:
|
||||
|
||||
```apache
|
||||
# this adds trailing slash
|
||||
RewriteCond %{REQUEST_FILENAME} !-f
|
||||
RewriteCond %{REQUEST_URI} !(\.[a-zA-Z0-9]{1,5}|/|#(.*))$
|
||||
RewriteRule ^(.*)$ $1/ [R=301,L]
|
||||
|
||||
# this gets rid of index.php
|
||||
RewriteCond %{REQUEST_FILENAME} !-f
|
||||
RewriteCond %{REQUEST_FILENAME} !-d
|
||||
RewriteRule ^(.*)$ index.php/$1
|
||||
```
|
||||
|
||||
### 4. Double-check `RewriteBase` path is correct
|
||||
|
||||
Make sure your `RewriteBase` path points to the correct location and sits above
|
||||
any rewrite rules. This usually happens to those have WordPress and ran the
|
||||
auto install. For instance, if you have a site at `example.com/blog`, your
|
||||
RewriteBase may look like:
|
||||
|
||||
```apache
|
||||
RewriteBase /blog/
|
||||
```
|
||||
|
||||
If you already have a working RewriteBase, keep that and don't remove it.
|
@ -1,170 +0,0 @@
|
||||
[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
|
||||
table of contents](TOC.md)
|
||||
|
||||
# The HTML
|
||||
|
||||
## Conditional `html` classes
|
||||
|
||||
A series of IE conditional comments apply the relevant IE-specific classes to
|
||||
the `html` tag. This provides one method of specifying CSS fixes for specific
|
||||
legacy versions of IE. While you may or may not choose to use this technique in
|
||||
your project code, HTML5 Boilerplate's default CSS does not rely on it.
|
||||
|
||||
When using the conditional classes technique, applying classes to the `html`
|
||||
element has several benefits:
|
||||
|
||||
* It avoids a [file blocking
|
||||
issue](http://webforscher.wordpress.com/2010/05/20/ie-6-slowing-down-ie-8/)
|
||||
discovered by Stoyan Stefanov and Markus Leptien.
|
||||
* It avoids the need for an empty comment that also fixes the above issue.
|
||||
* CMSes like WordPress and Drupal use the body class more heavily. This makes
|
||||
integrating there a touch simpler.
|
||||
* It still validates as HTML5.
|
||||
* It uses the same element as Modernizr (and Dojo). That feels nice.
|
||||
* It can improve the clarity of code in multi-developer teams.
|
||||
|
||||
|
||||
## The `no-js` class
|
||||
|
||||
Allows you to more easily explicitly add custom styles when JavaScript is
|
||||
disabled (`no-js`) or enabled (`js`). More here: [Avoiding the
|
||||
FOUC](http://paulirish.com/2009/avoiding-the-fouc-v3/).
|
||||
|
||||
|
||||
## The order of meta tags, and `<title>`
|
||||
|
||||
As recommended by [the HTML5
|
||||
spec](http://www.whatwg.org/specs/web-apps/current-work/complete/semantics.html#charset)
|
||||
(4.2.5.5 Specifying the document's character encoding), add your charset
|
||||
declaration early (before any ASCII art ;) to avoid a potential
|
||||
[encoding-related security
|
||||
issue](http://code.google.com/p/doctype/wiki/ArticleUtf7) in IE. It should come
|
||||
in the first [1024
|
||||
bytes](http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#charset).
|
||||
|
||||
The charset should also come before the `<title>` tag, due to [potential XSS
|
||||
vectors](http://code.google.com/p/doctype-mirror/wiki/ArticleUtf7).
|
||||
|
||||
The meta tag for compatibility mode [needs to be before all elements except
|
||||
title and meta](http://h5bp.com/f "Defining Document Compatibility - MSDN").
|
||||
And that same meta tag can only be invoked for Google Chrome Frame if it is
|
||||
within the [first 1024
|
||||
bytes](http://code.google.com/p/chromium/issues/detail?id=23003).
|
||||
|
||||
|
||||
## X-UA-Compatible
|
||||
|
||||
This makes sure the latest version of IE is used in versions of IE that contain
|
||||
multiple rendering engines. Even if a site visitor is using IE8 or IE9, it's
|
||||
possible that they're not using the latest rendering engine their browser
|
||||
contains. To fix this, use:
|
||||
|
||||
```html
|
||||
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
|
||||
```
|
||||
|
||||
The `meta` tag tells the IE rendering engine two things:
|
||||
|
||||
1. It should use the latest, or edge, version of the IE rendering environment
|
||||
2. If already installed, it should use the Google Chrome Frame rendering
|
||||
engine.
|
||||
|
||||
This `meta` tag ensures that anyone browsing your site in IE is treated to the
|
||||
best possible user experience that their browser can offer.
|
||||
|
||||
This line breaks validation, and the Google Chrome Frame part won't work inside
|
||||
a conditional comment. To avoid these edge case issues it is recommended that
|
||||
you **remove this line and use the `.htaccess`** (or other server config)
|
||||
to send these headers instead. You also might want to read [Validating:
|
||||
X-UA-Compatible](http://groups.google.com/group/html5boilerplate/browse_thread/thread/6d1b6b152aca8ed2).
|
||||
|
||||
If you are serving your site on a non-standard port, you will need to set this
|
||||
header on the server-side. This is because the IE preference option 'Display
|
||||
intranet sites in Compatibility View' is checked by default.
|
||||
|
||||
|
||||
## Mobile viewport
|
||||
|
||||
There are a few different options that you can use with the [`viewport` meta
|
||||
tag](https://docs.google.com/present/view?id=dkx3qtm_22dxsrgcf4 "Viewport and
|
||||
Media Queries - The Complete Idiot's Guide"). You can find out more in [the
|
||||
Apple developer docs](http://j.mp/mobileviewport). HTML5 Boilerplate comes with
|
||||
a simple setup that strikes a good balance for general use cases.
|
||||
|
||||
```html
|
||||
<meta name="viewport" content="width=device-width">
|
||||
```
|
||||
|
||||
## Favicons and Touch Icons
|
||||
|
||||
The shortcut icons should be put in the root directory of your site. HTML5
|
||||
Boilerplate comes with a default set of icons (include favicon and Apple Touch
|
||||
Icons) that you can use as a baseline to create your own.
|
||||
|
||||
If your site or icons are in a sub-directory, you will need to reference the
|
||||
icons using `link` elements placed in the HTML `head` of your document.
|
||||
|
||||
For a comprehensive overview, please read [Everything you always wanted to know
|
||||
about touch icons](http://mathiasbynens.be/notes/touch-icons) by Mathias
|
||||
Bynens.
|
||||
|
||||
|
||||
## Modernizr
|
||||
|
||||
HTML5 Boilerplate uses a custom build of Modernizr.
|
||||
|
||||
[Modernizr](http://modernizr.com) is a JavaScript library which adds classes to
|
||||
the `html` element based on the results of feature test and which ensures that
|
||||
all browsers can make use of HTML5 elements (as it includes the HTML5 Shiv).
|
||||
This allows you to target parts of your CSS and JavaScript based on the
|
||||
features supported by a browser.
|
||||
|
||||
In general, in order to keep page load times to a minimum, it's best to call
|
||||
any JavaScript at the end of the page because if a script is slow to load
|
||||
from an external server it may cause the whole page to hang. That said, the
|
||||
Modernizr script *needs* to run *before* the browser begins rendering the page,
|
||||
so that browsers lacking support for some of the new HTML5 elements are able to
|
||||
handle them properly. Therefore the Modernizr script is the only JavaScript
|
||||
file synchronously loaded at the top of the document.
|
||||
|
||||
|
||||
## The content area
|
||||
|
||||
The central part of the boilerplate template is pretty much empty. This is
|
||||
intentional, in order to make the boilerplate suitable for both web page and
|
||||
web app development.
|
||||
|
||||
### Google Chrome Frame
|
||||
|
||||
The main content area of the boilerplate includes a prompt to install Chrome
|
||||
Frame (which no longer requires administrative rights) for users of IE 6. If
|
||||
you intended to support IE 6, then you should remove the snippet of code.
|
||||
|
||||
### Google CDN for jQuery
|
||||
|
||||
The Google CDN version of the jQuery JavaScript library is referenced towards
|
||||
the bottom of the page using a protocol-independent path (read more about this
|
||||
in the [FAQ](faq.md)). A local fallback of jQuery is included for rare instances
|
||||
when the CDN version might not be available, and to facilitate offline
|
||||
development.
|
||||
|
||||
Regardless of which JavaScript library you choose to use, it is well worth the
|
||||
time and effort to look up and reference the Google CDN (Content Delivery
|
||||
Network) version. Your users may already have this version cached in their
|
||||
browsers, and Google's CDN is likely to deliver the asset faster than your
|
||||
server.
|
||||
|
||||
### Google Analytics Tracking Code
|
||||
|
||||
Finally, an optimized version of the latest Google Analytics tracking code is
|
||||
included. Google recommends that this script be placed at the top of the page.
|
||||
Factors to consider: if you place this script at the top of the page, you’ll be
|
||||
able to count users who don’t fully load the page, and you’ll incur the max
|
||||
number of simultaneous connections of the browser.
|
||||
|
||||
Further information:
|
||||
|
||||
* [Optimizing the asynchronous Google Analytics
|
||||
snippet](http://mathiasbynens.be/notes/async-analytics-snippet).
|
||||
* [Tracking Site Activity - Google
|
||||
Analytics](http://code.google.com/apis/analytics/docs/tracking/asyncTracking.html).
|
@ -1,31 +0,0 @@
|
||||
[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
|
||||
table of contents](TOC.md)
|
||||
|
||||
# The JavaScript
|
||||
|
||||
Information about the default JavaScript included in the project.
|
||||
|
||||
## main.js
|
||||
|
||||
This file can be used to contain or reference your site/app JavaScript code.
|
||||
For larger projects, you can make use of a JavaScript module loader, like
|
||||
[Require.js](http://requirejs.org/), to load any other scripts you need to
|
||||
run.
|
||||
|
||||
## plugins.js
|
||||
|
||||
This file can be used to contain all your plugins, such as jQuery plugins and
|
||||
other 3rd party scripts.
|
||||
|
||||
One approach is to put jQuery plugins inside of a `(function($){ ...
|
||||
})(jQuery);` closure to make sure they're in the jQuery namespace safety
|
||||
blanket. Read more about [jQuery plugin
|
||||
authoring](http://docs.jquery.com/Plugins/Authoring#Getting_Started)
|
||||
|
||||
## vendor
|
||||
|
||||
This directory can be used to contain all 3rd party library code.
|
||||
|
||||
Minified versions of the latest jQuery and Modernizr libraries are included by
|
||||
default. You may wish to create your own [custom Modernizr
|
||||
build](http://www.modernizr.com/download/).
|
@ -1,26 +0,0 @@
|
||||
[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
|
||||
table of contents](TOC.md)
|
||||
|
||||
# Miscellaneous
|
||||
|
||||
## .gitignore
|
||||
|
||||
HTML5 Boilerplate includes a basic project-level `.gitignore`. This should
|
||||
primarily be used to avoid certain project-level files and directories from
|
||||
being kept under source control. Different development-environments will
|
||||
benefit from different collections of ignores.
|
||||
|
||||
OS-specific and editor-specific files should be ignored using a "global
|
||||
ignore" that applies to all repositories on your system.
|
||||
|
||||
For example, add the following to your `~/.gitconfig`, where the `.gitignore`
|
||||
in your HOME directory contains the files and directories you'd like to
|
||||
globally ignore:
|
||||
|
||||
```gitignore
|
||||
[core]
|
||||
excludesfile = ~/.gitignore
|
||||
```
|
||||
|
||||
* More on global ignores: http://help.github.com/ignore-files/
|
||||
* Comprehensive set of ignores on GitHub: https://github.com/github/gitignore
|
@ -1,109 +0,0 @@
|
||||
[HTML5 Boilerplate homepage](http://html5boilerplate.com) | [Documentation
|
||||
table of contents](TOC.md)
|
||||
|
||||
# Usage
|
||||
|
||||
Once you have cloned or downloaded HTML5 Boilerplate, creating a site or app
|
||||
usually involves the following:
|
||||
|
||||
1. Set up the basic structure of the site.
|
||||
2. Add some content, style, and functionality.
|
||||
3. Run your site locally to see how it looks.
|
||||
4. (Optionally run a build script to automate the optimization of your site -
|
||||
e.g. [ant build script](https://github.com/h5bp/ant-build-script) or [node
|
||||
build script](https://github.com/h5bp/node-build-script)).
|
||||
5. Deploy your site.
|
||||
|
||||
|
||||
## Basic structure
|
||||
|
||||
A basic HTML5 Boilerplate site initially looks something like this:
|
||||
|
||||
```
|
||||
.
|
||||
├── css
|
||||
│ ├── main.css
|
||||
│ └── normalize.css
|
||||
├── doc
|
||||
├── img
|
||||
├── js
|
||||
│ ├── main.js
|
||||
│ ├── plugins.js
|
||||
│ └── vendor
|
||||
│ ├── jquery.min.js
|
||||
│ └── modernizr.min.js
|
||||
├── .htaccess
|
||||
├── 404.html
|
||||
├── index.html
|
||||
├── humans.txt
|
||||
├── robots.txt
|
||||
├── crossdomain.xml
|
||||
├── favicon.ico
|
||||
└── [apple-touch-icons]
|
||||
```
|
||||
|
||||
What follows is a general overview of each major part and how to use them.
|
||||
|
||||
### css
|
||||
|
||||
This directory should contain all your project's CSS files. It includes some
|
||||
initial CSS to help get you started from a solid foundation. [About the
|
||||
CSS](css.md).
|
||||
|
||||
### doc
|
||||
|
||||
This directory contains all the HTML5 Boilerplate documentation. You can use it
|
||||
as the location and basis for your own project's documentation.
|
||||
|
||||
### js
|
||||
|
||||
This directory should contain all your project's JS files. Libraries, plugins,
|
||||
and custom code can all be included here. It includes some initial JS to help
|
||||
get you started. [About the JavaScript](js.md).
|
||||
|
||||
### .htaccess
|
||||
|
||||
The default web server config is for Apache. [About the .htaccess](htaccess.md).
|
||||
|
||||
Host your site on a server other than Apache? You're likely to find the
|
||||
corresponding configuration file in our [server configs
|
||||
repo](https://github.com/h5bp/server-configs). If you cannot find a
|
||||
configuration file for your setup, please consider contributing one so that
|
||||
others can benefit too.
|
||||
|
||||
### 404.html
|
||||
|
||||
A helpful custom 404 to get you started.
|
||||
|
||||
### index.html
|
||||
|
||||
This is the default HTML skeleton that should form the basis of all pages on
|
||||
your site. If you are using a server-side templating framework, then you will
|
||||
need to integrate this starting HTML with your setup.
|
||||
|
||||
Make sure that you update the URLs for the referenced CSS and JavaScript if you
|
||||
modify the directory structure at all.
|
||||
|
||||
If you are using Google Analytics, make sure that you edit the corresponding
|
||||
snippet at the bottom to include your analytics ID.
|
||||
|
||||
### humans.txt
|
||||
|
||||
Edit this file to include the team that worked on your site/app, and the
|
||||
technology powering it.
|
||||
|
||||
### robots.txt
|
||||
|
||||
Edit this file to include any pages you need hidden from search engines.
|
||||
|
||||
### crossdomain.xml
|
||||
|
||||
A template for working with cross-domain requests. [About
|
||||
crossdomain.xml](crossdomain.md).
|
||||
|
||||
### icons
|
||||
|
||||
Replace the default `favicon.ico` and apple touch icons with your own. You
|
||||
might want to check out Hans Christian's handy [HTML5 Boilerplate Favicon and
|
||||
Apple Touch Icon
|
||||
PSD-Template](http://drublic.de/blog/html5-boilerplate-favicons-psd-template/).
|
Binary file not shown.
Before Width: | Height: | Size: 766 B |
@ -6,7 +6,7 @@
|
||||
<head>
|
||||
<meta charset="utf-8">
|
||||
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
|
||||
<title></title>
|
||||
<title>Albert Schulz</title>
|
||||
<meta name="description" content="">
|
||||
<meta name="viewport" content="width=device-width">
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user