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: Top offset using percentage</title>
5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
6 <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-top">
7 <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#position-props">
8 <meta name="flags" content="">
9 <meta name="assert" content="Percentage offset values for the 'top' property are based off the height of the containing block.">
10 <style type="text/css">
11 #div1
12 {
13 border: solid black;
14 height: 200px;
15 position: relative;
16 width: 100px;
17 }
18 div div
19 {
20 height: 50px;
21 position: absolute;
22 width: 50px;
23 }
24 #test
25 {
26 background: green;
27 top: 50%;
28 }
29 #reference
30 {
31 background: red;
32 bottom: 50px;
33 }
34 </style>
35 </head>
36 <body>
37 <p>Test passes if the green box is not in any of the corners of the black box and there is no red visible on the page.</p>
38 <div id="div1">
39 <div id="reference"></div>
40 <div id="test"></div>
41 </div>
42 </body>
43 </html>