Created by: benvinegar
Fixes a bug w/ the .clearfix trick affecting Opera browsers when there is a contenteditable div on the page. We ran into this ourselves w/ Disqus (in Opera 12), but it has been reported by at least one other user on Nicholas Gallagher's blog post:
In Opera 11.62 if on page we have any div.clearfix and any
<div contenteditable="true">, the blocks with clearfix have additional height.
http://nicolasgallagher.com/micro-clearfix-hack/#comment-36952
In the comments, Nick suggests using height: 0 or font: 0/0 – we made this fix before finding the blog post (sigh), and found line-height: 0 worked fine.
If you're curious just how much height this added, here's a screen shot of Disqus in Opera 12 before this patch was applied: http://dl.dropbox.com/u/421333/Screenshots/avu~_coot-_-.png