add missing parentheses

source/albert/css/main.css

@@ -299,8 +299,6 @@ ul li
 
 @media only screen and (max-width: 320px) {
     /* Style adjustments for viewports that meet the condition */
-
-
   body {
     width: 640px;
   }
@@ -322,3 +320,4 @@ h1 {
     box-shadow: -1px 2px 2px 0px #aaa;
 
   }
+}