clearBoth Class Functionality
The class clearBoth is used for two purposes: Clearing floated elements and ensuring that containers are as long as they should be. Usually, you'll only use it when you are working with images or for the main divs of the layout, such as #content or #navigation.
Relevant HTML
<div class="clearBoth"></div>
Relevant CSS
.clearBoth
{
clear:both;
}