The all important clearfix

clearfix.css

.clear {
	clear: both;
	display: block;
	overflow: hidden;
	visibility: hidden;
	width: 0;
	height: 0;
}
.clearfix:after {
	clear: both;
	content: ' ';
	display: block;
	font-size: 0;
	line-height: 0;
	visibility: hidden;
	width: 0;
	height: 0;
}
* html .clearfix,
*:first-child+html .clearfix {
	zoom: 1;
}