I've built a site which I use some jQuery to create a slider on the page.

The issue I have is on this page http://hottech2.rollertestingserver....nuous-flow/#x3 and only happens when I am using <video> within a <li> tag and only occurs in Safari 5.1.5 but was fine in previous versions.

If you click from 1 to 2 on the slide you'll notice the text loses it's bold. Click back and the bold comes back.

Any tips why this is happening?