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: Principal block box establishes the containing block for generated content</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#block-boxes">
7 <meta name="flags" content="">
8 <meta name="assert" content="Principal block boxes establish a containing block for generated content.">
9 <style type="text/css">
10 div
11 {
12 background: blue;
13 height: 1in;
14 position: absolute;
15 width: 1in;
16 }
17 div div:before
18 {
19 content: ".";
20 background: orange;
21 bottom: 0;
22 display: block;
23 height: 0.25in;
24 position: absolute;
25 right: 0;
26 width: 0.25in;
27 }
28 </style>
29 </head>
30 <body>
31 <p>Test passes if the orange box is in the bottom right corner of the blue box.</p>
32 <div>
33 <div></div>
34 </div>
35 </body>
36 </html>