Index: wp-content/themes/twentyfourteen/header.php
===================================================================
--- wp-content/themes/twentyfourteen/header.php	(revision 27275)
+++ wp-content/themes/twentyfourteen/header.php	(working copy)
@@ -49,7 +49,7 @@
 			</div>
 
 			<nav id="primary-navigation" class="site-navigation primary-navigation" role="navigation">
-				<h1 class="menu-toggle"><?php _e( 'Primary Menu', 'twentyfourteen' ); ?></h1>
+				<button class="menu-toggle"><?php _e( 'Primary Menu', 'twentyfourteen' ); ?></button>
 				<a class="screen-reader-text skip-link" href="#content"><?php _e( 'Skip to content', 'twentyfourteen' ); ?></a>
 				<?php wp_nav_menu( array( 'theme_location' => 'primary', 'menu_class' => 'nav-menu' ) ); ?>
 			</nav>
Index: wp-content/themes/twentyfourteen/style.css
===================================================================
--- wp-content/themes/twentyfourteen/style.css	(revision 27275)
+++ wp-content/themes/twentyfourteen/style.css	(working copy)
@@ -985,11 +985,14 @@
 }
 
 .menu-toggle {
+	background-color: #000;
+	border-radius: 0;
 	cursor: pointer;
 	font-size: 0;
 	height: 48px;
 	margin: 0;
 	overflow: hidden;
+	padding: 0;
 	position: absolute;
 	top: 0;
 	right: 0;
@@ -1000,10 +1003,17 @@
 .menu-toggle:before {
 	color: #fff;
 	content: "\f419";
+	display: inline;
 	margin-top: 16px;
 }
 
+.menu-toggle:active,
+.menu-toggle:focus,
+.menu-toggle:hover {
+	background-color: #444;
+}
 
+
 /**
  * 6.0 Content
  * -----------------------------------------------------------------------------