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 - absolute positioning and siblings</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="Absolutely positioned boxes do not collapse margins with siblings.">
9 <style type="text/css">
10 #div1
11 {
12 background: url('support/margin-collapse-2em-space.png') left -1em;
13 border-top: 1em solid green;
14 font: 20px/1em Ahem;
15 height: 3em;
16 width: 5em;
17 }
18 div div
19 {
20 height: 1em;
21 margin-top: 1em;
22 width: 5em;
23 }
24 #div2
25 {
26 height: 0;
27 }
28 #div3
29 {
30 background: green;
31 position: absolute;
32 }
33 </style>
34 </head>
35 <body>
36 <p>Test passes if there is no red visible on the page.</p>
37 <div id="div1">
38 <div id="div2"></div>
39 <div id="div3"></div>
40 </div>
41 </body>
42 </html>