1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
2 <html lang="en">
3 <head>
4 <title>CSS Test: Margin Collapsing: negative margins (easy)</title>
5 <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch">
6 <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/block/margin-collapse/029.html" type="text/html">
7 <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins">
8 <style type="text/css">
9 .container { background: red; height: auto; border: 1em lime solid; }
10 .a { margin-top: -1em; margin-bottom: 1em; }
11 .b { margin-top: 1em; margin-bottom: 1em; }
12 .c { margin-top: 1em; margin-bottom: 1em; }
13 .d { margin-top: 1em; margin-bottom: 1em; }
14 .e { margin-top: 1em; margin-bottom: 1em; }
15 .f { margin-top: 1em; margin-bottom: 1em; }
16 </style>
17 </head>
18 <body>
19 <p>There should be no red below.</p>
20 <div class="container">
21 <div class="a">
22 <div class="b"> </div>
23 <div class="c"> </div>
24 </div>
25 <div class="d">
26 <div class="e"> </div>
27 <div class="f"> </div>
28 </div>
29 </div>
30
31
32 </body>
33 </html>