<!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><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>CSS Test: Test for z-ordering of inline-block</title> <link rel="author" title="L. David Baron" href="http://dbaron.org/" /> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/zindex.html#painting-order" /> <link rel="match" href="reference/inline-block-zorder-001-ref.xht" /> <style type="text/css"> div { width: 2em; height: 1em; } span { display:inline-block; vertical-align: top; width: 2em; height: 1em; } span span { display: block; background: green; } div#after { margin-top: -1em; background: red; } </style> </head> <body> <div><span><span> </span></span></div> <div id="after"> </div> </body></html>