diff --git a/functions.php b/functions.php
index 48ece08fa..38ea36ec7 100644
--- a/functions.php
+++ b/functions.php
@@ -140,7 +140,7 @@ function twentytwelve_scripts_styles() {
 		wp_enqueue_script( 'comment-reply' );
 
 	// Adds JavaScript for handling the navigation menu hide-and-show behavior.
-	wp_enqueue_script( 'twentytwelve-navigation', get_template_directory_uri() . '/js/navigation.js', array( 'jquery' ), '20140608', true );
+	wp_enqueue_script( 'twentytwelve-navigation', get_template_directory_uri() . '/js/navigation.js', array( 'jquery' ), '20140711', true );
 
 	$font_url = twentytwelve_get_font_url();
 	if ( ! empty( $font_url ) )
diff --git a/header.php b/header.php
index 6a665a557..8dcd9a99e 100644
--- a/header.php
+++ b/header.php
@@ -40,7 +40,7 @@
 		</hgroup>
 
 		<nav id="site-navigation" class="main-navigation" role="navigation">
-			<h3 class="menu-toggle"><?php _e( 'Menu', 'twentytwelve' ); ?></h3>
+			<button class="menu-toggle"><?php _e( 'Menu', 'twentytwelve' ); ?></button>
 			<a class="assistive-text" href="#content" title="<?php esc_attr_e( 'Skip to content', 'twentytwelve' ); ?>"><?php _e( 'Skip to content', 'twentytwelve' ); ?></a>
 			<?php wp_nav_menu( array( 'theme_location' => 'primary', 'menu_class' => 'nav-menu' ) ); ?>
 		</nav><!-- #site-navigation -->
diff --git a/js/navigation.js b/js/navigation.js
index 383077ad5..34a640246 100644
--- a/js/navigation.js
+++ b/js/navigation.js
@@ -8,7 +8,7 @@
 		return;
 	}
 
-	button = nav.getElementsByTagName( 'h3' )[0];
+	button = nav.getElementsByTagName( 'button' )[0];
 	menu   = nav.getElementsByTagName( 'ul' )[0];
 	if ( ! button ) {
 		return;
diff --git a/style.css b/style.css
index 110332867..a35f96ab1 100644
--- a/style.css
+++ b/style.css
@@ -272,6 +272,7 @@ input[disabled] {
 	cursor: default;
 }
 .menu-toggle:hover,
+.menu-toggle:focus,
 button:hover,
 input[type="submit"]:hover,
 input[type="button"]:hover,