<!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'>div.margin-wrapper { background: lightyellow; border: 1px solid gold; float: left; margin: 5px;}div.margin-wrapper div { background: khaki; border: 1px solid black; width: 25px; height: 25px;}div#parent { margin: 5px; border: none; background: crimson;}div#child { margin: 5px;} </style> </head> <body> <div class='margin-wrapper'> <div id='parent'> <div id='child'>asdf</div> </div> </div> </body></html>