<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en'> <head> <title>margin</title> <style rel='stylesheet' type='text/css'>body { margin: 0; padding: 0;}div { width: 100px; height: 100px; background: lightyellow; border: 1px solid gold;}div#top { margin: 10px 20px;}div#bottom { margin: 20px;} </style> </head> <body> <div id='top'></div> <div id='bottom'></div> </body></html>
