<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>Three-Column Layout Demonstration</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><style rel="stylesheet" type="text/css">#top { margin: 20px; padding: 10px; background: #ccc; height: 100px;}#wrapper { margin: 0 10px; padding: 0;}#left { float: left; width: 200px;}#right { float: right; width: 200px;}#center { margin-left: 210px; margin-right: 210px; background-color: #ccc;}#clear { clear: both;}#footer { background: #ccc; margin: 20px; text-align: center;}div > p { margin-top: 0;}</style></head><body><div id="top"> <h1> This is the header </h1></div><div id="wrapper"> <div id="left"> <p>on the page. </p> </div> <div id="right"> <p>two columns. </p> </div> <div id="center"> <p>first.</p> <p>spacing.</p> </div> <div id="clear"></div></div><div id="footer"> <p> This footer should float below the three columns. </p></div></body></html>