<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN"> <html lang="en"> <head> <title>Margin Collapsing: clear with no floats</title> <style type="text/css"> table, td { padding: 0; border-spacing: 0; } .comparator { border-spacing: 1em; } .test, .control { border: solid; background: red; } .test .container { display: block; background: yellow; margin: 0; width: 8em; } .test .block { display: block; border-top: 1em solid lime; margin: 0 0 0 0; } .test .clear { display: block; border-top: 1em solid green; margin: 1em 0 0 0; clear: right; } .control .lime { background: lime; height: 1em; width: 8em; } .control .yellow { background: yellow; height: 1em; width: 8em; } .control .green { background: green; height: 1em; width: 8em; } </style> </head> <body> <p>The following three rectangles should be identical, with no red present.</p> <table class="comparator"> <tr> <td class="test"> <div class="container"> <div class="block"> </div> <div class="clear"> </div> </div> </td> <td class="control"> <div class="lime"> </div> <div class="yellow"> </div> <div class="green"> </div> </td> </tr> <tr> <td class="control"> <div class="lime"> </div> <div class="yellow"> </div> <div class="green"> </div> </td> <td></td> </tr> </table> </body> </html>