Forum:Br clear not working

In an article I've just edited, w:c:24:Benjamin, I put in a just before the "live appearances" heading. So, that heading should be pushed down past the sidebar and appear under it. It does when I preview the page, and as the page loads it displays correctly for a second before jumping up to the wrong place. Are other people seeing this happening; has it happened elsewhere on Wikia; and does anyone know why? Thanks-- Category:Acer4666 00:16, September 5, 2012 (UTC)
 * Perhaps it is related to the html5 upgrade (all 1.19 wikis use html5, 1.16 don't) - which made this value deprecated. Try using    instead, if it continues to create problems. Marc-Philipp   (Talk)  02:29, September 5, 2012 (UTC)