blog/.themes/classic/source/_includes/article.html

{% unless page.no_header %}
  <header>
    {% if index %}
      <h1 class="entry-title"><a href="{{ root_url }}{{ post.url }}">{{ post.title | titlecase }}</a></h1>
    {% else %}
      <h1 class="entry-title">{{ page.title | titlecase }}</h1>
    {% endif %}
    {% unless page.meta == false %}
      <p class="meta">{% include post/date.html %}{{ time }}</p>
    {% endunless %}
  </header>
{% endunless %}
{% if index %}
  <div class="entry-content">{{ content | excerpt }}</div>
  {% capture excerpted %}{{ content | has_excerpt }}{% endcapture %}
  {% if excerpted == 'true' %}
    <footer>
      <a rel="full-article" href="{{ root_url }}{{ post.url }}">{{ site.excerpt_link }}</a>
    </footer>
  {% endif %}
{% else %}
<div class="entry-content">{{ content }}</div>
{% endif %}