In version 1.8 I’ve added the class parameter.
All it does is add class names to the video wrapper.
If you need to add 2 or more class names, all you have to do is wrap them between double quotes (class=”class1 class2″).
This way you can, for example, position a video to the right of your text in a post such as this one :)
Shortcode parameters used:
url=http://youtu.be/CIcIyVQ3E_E w=400 class=alignright