height-114

Negative heights

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Source

 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: Negative heights</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/height/004.html" type="text/html">
 7   <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#the-height-property">
 8   <style type="text/css">
 9    .outer { background: red; height: 2em; }
10    .test { border-top: solid green 1em; border-bottom: solid green 1em; background: red; }
11    .inner { margin-bottom: -10em; }
12   </style>
13  </head>
14  <body>
15   <p>There should be a green block below and no red.</p>
16   <div class="outer">
17    <div class="test">
18     <div class="inner"></div>
19    </div>
20   </div>
21  </body>
22 </html>