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: Relative Positioning - auto top = -bottom</title>
5 <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
6 <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#relative-positioning">
7 <meta name="flags" content="">
8 <meta name="assert" content="For a relatively positioned element, if 'top' is 'auto', its used value is minus the value of 'bottom'.">
9 <style type="text/css">
10 div {
11 height: 120px;
12 width: 120px;
13 }
14 .container {
15 margin-top: -60px;
16 }
17 .outer {
18 background: red;
19 position: relative;
20 bottom: -50%;
21 }
22 .inner {
23 background: green;
24 position: relative;
25 top: inherit; /* using inheritance to test computed vs. used */
26 }
27 .control {
28 background: red;
29 margin-top: -60px;
30 }
31 </style>
32 </head>
33 <body>
34 <p>There must be a green box below and no red.</p>
35 <div class="container">
36 <div class="outer">
37 <div class="inner"></div>
38 </div>
39 </div>
40 <div class="control"></div>
41 </body>
42 </html>