Index: src/wp-admin/css/themes.css
===================================================================
--- src/wp-admin/css/themes.css	(revision 31802)
+++ src/wp-admin/css/themes.css	(working copy)
@@ -9,6 +9,7 @@
 
 .theme-browser .themes {
 	clear: both;
+	overflow: hidden;
 	padding: 0 0 100px;
 }
 
Index: src/wp-admin/js/theme.js
===================================================================
--- src/wp-admin/js/theme.js	(revision 31802)
+++ src/wp-admin/js/theme.js	(working copy)
@@ -81,7 +81,6 @@
 		this.view.render();
 		this.$el.find( '.themes' ).remove();
 		this.$el.append( this.view.el ).addClass( 'rendered' );
-		this.$el.append( '<br class="clear"/>' );
 	},
 
 	// Defines search element container
Index: src/wp-admin/theme-install.php
===================================================================
--- src/wp-admin/theme-install.php	(revision 31802)
+++ src/wp-admin/theme-install.php	(working copy)
@@ -172,7 +172,6 @@
 	<div class="theme-install-overlay wp-full-overlay expanded"></div>
 	<span class="spinner"></span>
 
-	<br class="clear" />
 <?php
 if ( $tab ) {
 	/**
Index: src/wp-admin/themes.php
===================================================================
--- src/wp-admin/themes.php	(revision 31802)
+++ src/wp-admin/themes.php	(working copy)
@@ -248,7 +248,6 @@
 	<?php } ?>
 </div>
 <?php endforeach; ?>
-	<br class="clear" />
 	</div>
 	<p class="no-themes"><?php _e( 'No themes found. Try a different search.' ); ?></p>
 </div>