<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN"> <html lang="en"> <head> <title>Margin Collapsing: in flow (simple)</title> <style type="text/css"> .ahem { display: inline; font: 1em/1 Ahem, sans-serif; background: red; color: white; } /* test */ .test { margin: 1em; background: green; font: 40px/1 Ahem; width: 3em; } .test div { color: white; margin: 1em; } </style> </head> <body> <div class="ahem">Ahem_font_required_for_this_test.</div> <p>There should be a big square green H below:</p> <div class="test"> <div>X</div> <div>X</div> </div> </body> </html>