Index: wp-admin/network/upgrade.php
===================================================================
--- wp-admin/network/upgrade.php	(revision 21789)
+++ wp-admin/network/upgrade.php	(working copy)
@@ -72,7 +72,7 @@
 			do_action( 'wpmu_upgrade_site', $details[ 'blog_id' ] );
 		}
 		echo "</ul>";
-		?><p><?php _e( 'If your browser doesn&#8217;t start loading the next page automatically, click this link:' ); ?> <a class="button" href="upgrade.php?action=upgrade&amp;n=<?php echo ($n + 5) ?>"><?php _e("Next Sites"); ?></a></p>
+		?><p><?php _e( 'If your browser doesn&#8217;t start loading the next page automatically, click this link:' ); ?> <a class="button button-small" href="upgrade.php?action=upgrade&amp;n=<?php echo ($n + 5) ?>"><?php _e("Next Sites"); ?></a></p>
 		<script type='text/javascript'>
 		<!--
 		function nextpage() {