Clearfix (all browsers)
/* =Clearfix (all browsers)
--------------------------------*/
.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
/* IE6 */
* html .clearfix {height: 1%;}
/* IE7 */
*:first-child+html .clearfix {min-height: 1px;}
Added to CSS by Brad Dielman