<!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"> <head> <title>CSS Multi-column Layout Test: no margin collapsing with its first child block box</title> <link rel="author" title="Opera Software ASA" href="http://www.opera.com/" /> <link rel="reviewer" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2013-07-25 --> <link rel="help" href="http://www.w3.org/TR/css3-multicol/#the-multi-column-model" title="2. The multi-column model" /> <link rel="match" href="multicol-collapsing-001-ref.xht"/> <meta name="flags" content="ahem" /> <meta name="assert" content="This test checks that the top margin of the first child block box of a multicol element does not collapse with the margin top of such multicol element." /> <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> <style type="text/css"><![CDATA[ body > div { background-color: black; border: black solid 1px; font: 1.25em/1 Ahem; width: 10em; } div > div { background-color: yellow; color: black; margin: 1em; width: 8em; orphans: 1; widows: 1; column-count: 3; column-gap: 1em; } h4 { font: inherit; margin: 1em 0 0; } ]]></style> </head> <body> <div> <div> <h4>ab cd</h4> ef gh ij kl mn oq </div> </div> </body> </html>