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: Percentage based 'height' computes to 'auto' when containing block has no specified height</title>
5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
6 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-height">
7 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#the-height-property">
8 <meta name="flags" content="">
9 <meta name="assert" content="A percentage height is computed to 'auto' when the element is not absolutely positioned and there is no 'height' explicitly set on the containing block.">
10 <style type="text/css">
11 div
12 {
13 width: 1in;
14 }
15 #div1
16 {
17 background: red;
18 }
19 div div
20 {
21 background: red;
22 height: 50%;
23 }
24 </style>
25 </head>
26 <body>
27 <p>Test passes if there is no red visible on the page.</p>
28 <div id="div1">
29 <div></div>
30 </div>
31 </body>
32 </html>