Easy clearfix

Well, it's fair enough that the article on clearing floats at http://www.positioniseverything.net/easyclearing.html is incredibly concise, but people are mis-using the code.

The article was last updates on July 2, 2008, we've had years to get this right.

When taming the IE/Mac problem, the display:inline-block; attribute needs to be hidden from all other browsers using a conditional statement as specified. If this is allowed to 'leak' though, the block element will collapse to it's content width.

This is no good for fixed width vertical column menu elements.

Use caution.