spaces when embedding a webplayer

This is an HTML layout question.
I’ve done an iPhone mockup for our blog: it starts with a preview image in a iframe, and when you click it, switches to the player page (to avoid downloading/launching a webplayer straight when the page loads).

The preview image appears fine on all browsers I tested: FF2, FF3, IE7, Safari.
The webplayer also appears fine on FF2, IE7 Safari, but shows white lines in FF3 for some reason I can’t fathom. It looks like the webplayer pushes the row a few pixels up…
Any tips?

Also, if there’s a Wordpress guru out there, I’d love to create a plugin to support Unity embed from the wp editor… help needed! :smile:

Nailed it!
Apparently Firefox is bitchy enough to insert spaces whenever it encounters a space/tab/CR… seems anti-HTML to me but whatever. Fix: the and tags must be written on one line.
So now the layout works on FF2, FF3, IE7, Safari Chrome, yay! 8)