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: Initial containing block for fixed positioned elements</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#containing-block-details">
7 <meta name="flags" content="">
8 <meta name="assert" content="The containing block is established by the viewport when an element uses fixed positioning.">
9 <style type="text/css">
10 #div1
11 {
12 position: relative;
13 bottom: 0;
14 }
15 div div
16 {
17 background: blue;
18 height: 1in;
19 position: fixed;
20 right: 0;
21 top: 0;
22 width: 1in;
23 }
24 </style>
25 </head>
26 <body>
27 <p>Test passes if there is a blue box in the upper-right corner of the page.</p>
28 <div id="div1">
29 <div></div>
30 </div>
31 </body>
32 </html>