CSS Clear Fix

clearfix.css

/*
  Example Usage:
  
  <div style="float:left">
    ...
  </div>
  <div style="float:right;" class="clearfix">
    ...
  </div>
  
*/

.clearfix:after {
  content: '.';
  display: block;
  height: 0px;
  clear: both;
  visibility: hidden;
}