1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
2 <html>
3 <head>
4 <title>CSS Test: Margin collapsing and elements with 'overflow' set to 'visible'</title>
5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
6 <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins">
7 <meta name="flags" content="ahem image">
8 <meta name="assert" content="Elements with 'overflow' set to 'visible' collapse margin with in-flow children.">
9 <style type="text/css">
10 div
11 {
12 font: 20px/1em Ahem;
13 width: 5em;
14 }
15 div div
16 {
17 height: 1em;
18 }
19 #div1
20 {
21 background: url('support/margin-collapse-2em-space.png') left -1em;
22 border-top: 1em solid green;
23 }
24 #div2
25 {
26 margin-top: 2em;
27 overflow: visible;
28 }
29 #div3
30 {
31 background: green;
32 margin-top: 2em;
33 }
34 </style>
35 </head>
36 <body>
37 <p>Test passes if there is no red visible on the page.</p>
38 <div id="div1">
39 <div id="div2">
40 <div id="div3"></div>
41 </div>
42 </div>
43 </body>
44 </html>