Karma Vimeo Resize Problems

So I’m using Karma as my theme. I have a Vimeo video on the home page. The original video is 640 x 360. I have it resized on the home page to be 555 x 312. The code I’m using to do that is:

[iframe url="http://player.vimeo.com/external/69192279.sd.mp4?s=684a9ee1fe86dbfe75ba263298a5a713" width="555" height="312" scrolling="no" frameborder="0" marginheight="0"]

Looks great in Chrome and Firefox. In IE it’s a tiny bit cut off on the right. In Safari, however, it’s way cut off on the right. In fact, Safari puts scroll bars so you can see the whole video. Any ideas how to force the resize across all browsers?

Page is: http://bit.ly/19tbmTQ