Index: wp-content/themes/twentytwelve/search.php
===================================================================
--- wp-content/themes/twentytwelve/search.php	(revision 22166)
+++ wp-content/themes/twentytwelve/search.php	(working copy)
@@ -10,6 +10,7 @@
 get_header(); ?>
 
 	<section id="primary" class="site-content">
+
 		<div id="content" role="main">
 
 		<?php if ( have_posts() ) : ?>
@@ -43,6 +44,7 @@
 		<?php endif; ?>
 
 		</div><!-- #content -->
+
 	</section><!-- #primary -->
 
 <?php get_sidebar(); ?>
Index: wp-content/themes/twentytwelve/404.php
===================================================================
--- wp-content/themes/twentytwelve/404.php	(revision 22166)
+++ wp-content/themes/twentytwelve/404.php	(working copy)
@@ -10,20 +10,24 @@
 get_header(); ?>
 
 	<div id="primary" class="site-content">
+
 		<div id="content" role="main">
 
 			<article id="post-0" class="post error404 no-results not-found">
+
 				<header class="entry-header">
 					<h1 class="entry-title"><?php _e( 'This is somewhat embarrassing, isn&rsquo;t it?', 'twentytwelve' ); ?></h1>
-				</header>
+				</header><!-- .entry-header -->
 
 				<div class="entry-content">
 					<p><?php _e( 'It seems we can&rsquo;t find what you&rsquo;re looking for. Perhaps searching can help.', 'twentytwelve' ); ?></p>
 					<?php get_search_form(); ?>
 				</div><!-- .entry-content -->
+
 			</article><!-- #post-0 -->
 
 		</div><!-- #content -->
+
 	</div><!-- #primary -->
 
-<?php get_footer(); ?>
\ No newline at end of file
+<?php get_footer(); ?>
Index: wp-content/themes/twentytwelve/single.php
===================================================================
--- wp-content/themes/twentytwelve/single.php	(revision 22166)
+++ wp-content/themes/twentytwelve/single.php	(working copy)
@@ -10,6 +10,7 @@
 get_header(); ?>
 
 	<div id="primary" class="site-content">
+
 		<div id="content" role="main">
 
 			<?php while ( have_posts() ) : the_post(); ?>
@@ -18,6 +19,7 @@
 
 				<nav class="nav-single">
 					<h3 class="assistive-text"><?php _e( 'Post navigation', 'twentytwelve' ); ?></h3>
+
 					<span class="nav-previous"><?php previous_post_link( '%link', '<span class="meta-nav">' . _x( '&larr;', 'Previous post link', 'twentytwelve' ) . '</span> %title' ); ?></span>
 					<span class="nav-next"><?php next_post_link( '%link', '%title <span class="meta-nav">' . _x( '&rarr;', 'Next post link', 'twentytwelve' ) . '</span>' ); ?></span>
 				</nav><!-- .nav-single -->
@@ -31,6 +33,7 @@
 			<?php endwhile; // end of the loop. ?>
 
 		</div><!-- #content -->
+
 	</div><!-- #primary -->
 
 <?php get_sidebar(); ?>
Index: wp-content/themes/twentytwelve/page.php
===================================================================
--- wp-content/themes/twentytwelve/page.php	(revision 22166)
+++ wp-content/themes/twentytwelve/page.php	(working copy)
@@ -15,6 +15,7 @@
 get_header(); ?>
 
 	<div id="primary" class="site-content">
+
 		<div id="content" role="main">
 
 			<?php while ( have_posts() ) : the_post(); ?>
@@ -23,6 +24,7 @@
 			<?php endwhile; // end of the loop. ?>
 
 		</div><!-- #content -->
+
 	</div><!-- #primary -->
 
 <?php get_sidebar(); ?>
Index: wp-content/themes/twentytwelve/image.php
===================================================================
--- wp-content/themes/twentytwelve/image.php	(revision 22166)
+++ wp-content/themes/twentytwelve/image.php	(working copy)
@@ -12,11 +12,13 @@
 get_header(); ?>
 
 	<div id="primary" class="site-content">
+
 		<div id="content" role="main">
 
 		<?php while ( have_posts() ) : the_post(); ?>
 
 				<article id="post-<?php the_ID(); ?>" <?php post_class( 'image-attachment' ); ?>>
+
 					<header class="entry-header">
 						<h1 class="entry-title"><?php the_title(); ?></h1>
 
@@ -59,6 +61,7 @@
 endforeach;
 
 $k++;
+
 // If there is more than 1 attachment in a gallery
 if ( count( $attachments ) > 1 ) :
 	if ( isset( $attachments[ $k ] ) ) :
@@ -73,16 +76,19 @@
 	$next_attachment_url = wp_get_attachment_url();
 endif;
 ?>
-								<a href="<?php echo esc_url( $next_attachment_url ); ?>" title="<?php the_title_attribute(); ?>" rel="attachment"><?php
-								$attachment_size = apply_filters( 'twentytwelve_attachment_size', array( 960, 960 ) );
-								echo wp_get_attachment_image( $post->ID, $attachment_size );
-								?></a>
+								<a href="<?php echo esc_url( $next_attachment_url ); ?>" title="<?php the_title_attribute(); ?>" rel="attachment">
+									<?php
+									$attachment_size = apply_filters( 'twentytwelve_attachment_size', array( 960, 960 ) );
+									echo wp_get_attachment_image( $post->ID, $attachment_size );
+									?>
+								</a>
 
 								<?php if ( ! empty( $post->post_excerpt ) ) : ?>
-								<div class="entry-caption">
-									<?php the_excerpt(); ?>
-								</div>
+									<div class="entry-caption">
+										<?php the_excerpt(); ?>
+									</div><!-- .entry-caption -->
 								<?php endif; ?>
+
 							</div><!-- .attachment -->
 
 						</div><!-- .entry-attachment -->
Index: wp-content/themes/twentytwelve/inc/custom-header.php
===================================================================
--- wp-content/themes/twentytwelve/inc/custom-header.php	(revision 22166)
+++ wp-content/themes/twentytwelve/inc/custom-header.php	(working copy)
@@ -94,33 +94,33 @@
 function twentytwelve_admin_header_style() {
 ?>
 	<style type="text/css">
-	.appearance_page_custom-header #headimg {
-		border: none;
-	}
-	#headimg h1,
-	#headimg h2 {
-		line-height: 1.6;
-		margin: 0;
-		padding: 0;
-	}
-	#headimg h1 {
-		font-size: 30px;
-	}
-	#headimg h1 a {
-		color: #515151;
-		text-decoration: none;
-	}
-	#headimg h1 a:hover {
-		color: #21759b;
-	}
-	#headimg h2 {
-		color: #777;
-		font: normal 13px/1.8 "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", sans-serif;
-		margin-bottom: 24px;
-	}
-	#headimg img {
-		max-width: <?php echo get_theme_support( 'custom-header', 'max-width' ); ?>px;
-	}
+		.appearance_page_custom-header #headimg {
+			border: none;
+		}
+		#headimg h1,
+		#headimg h2 {
+			line-height: 1.6;
+			margin: 0;
+			padding: 0;
+		}
+		#headimg h1 {
+			font-size: 30px;
+		}
+		#headimg h1 a {
+			color: #515151;
+			text-decoration: none;
+		}
+		#headimg h1 a:hover {
+			color: #21759b;
+		}
+		#headimg h2 {
+			color: #777;
+			font: normal 13px/1.8 "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", sans-serif;
+			margin-bottom: 24px;
+		}
+		#headimg img {
+			max-width: <?php echo get_theme_support( 'custom-header', 'max-width' ); ?>px;
+		}
 	</style>
 <?php
 }
@@ -141,10 +141,13 @@
 			$style = ' style="color:#' . get_header_textcolor() . ';"';
 		?>
 		<h1><a id="name"<?php echo $style; ?> onclick="return false;" href="<?php echo esc_url( home_url( '/' ) ); ?>"><?php bloginfo( 'name' ); ?></a></h1>
+
 		<h2 id="desc"<?php echo $style; ?>><?php bloginfo( 'description' ); ?></h2>
+
 		<?php $header_image = get_header_image();
+
 		if ( ! empty( $header_image ) ) : ?>
 			<img src="<?php echo esc_url( $header_image ); ?>" class="header-image" width="<?php echo get_custom_header()->width; ?>" height="<?php echo get_custom_header()->height; ?>" alt="" />
 		<?php endif; ?>
-	</div>
-<?php }
\ No newline at end of file
+	</div><!-- #heading -->
+<?php }
Index: wp-content/themes/twentytwelve/comments.php
===================================================================
--- wp-content/themes/twentytwelve/comments.php	(revision 22166)
+++ wp-content/themes/twentytwelve/comments.php	(working copy)
@@ -31,18 +31,18 @@
 				printf( _n( 'One thought on &ldquo;%2$s&rdquo;', '%1$s thoughts on &ldquo;%2$s&rdquo;', get_comments_number(), 'twentytwelve' ),
 					number_format_i18n( get_comments_number() ), '<span>' . get_the_title() . '</span>' );
 			?>
-		</h2>
+		</h2><!-- .comments-title -->
 
 		<ol class="commentlist">
 			<?php wp_list_comments( array( 'callback' => 'twentytwelve_comment', 'style' => 'ol' ) ); ?>
 		</ol><!-- .commentlist -->
 
 		<?php if ( get_comment_pages_count() > 1 && get_option( 'page_comments' ) ) : // are there comments to navigate through ?>
-		<nav id="comment-nav-below" class="navigation" role="navigation">
-			<h1 class="assistive-text section-heading"><?php _e( 'Comment navigation', 'twentytwelve' ); ?></h1>
-			<div class="nav-previous"><?php previous_comments_link( __( '&larr; Older Comments', 'twentytwelve' ) ); ?></div>
-			<div class="nav-next"><?php next_comments_link( __( 'Newer Comments &rarr;', 'twentytwelve' ) ); ?></div>
-		</nav>
+			<nav id="comment-nav-below" class="navigation" role="navigation">
+				<h1 class="assistive-text section-heading"><?php _e( 'Comment navigation', 'twentytwelve' ); ?></h1>
+				<div class="nav-previous"><?php previous_comments_link( __( '&larr; Older Comments', 'twentytwelve' ) ); ?></div>
+				<div class="nav-next"><?php next_comments_link( __( 'Newer Comments &rarr;', 'twentytwelve' ) ); ?></div>
+			</nav><!-- #comment-nav-below -->
 		<?php endif; // check for comment navigation ?>
 
 	<?php // If comments are closed and there are comments, let's leave a little note.
