table-layer-transparency-002

Background on a column group element shows if all elements above its layer are transparent

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Assertion
A background set on a column group element will show if all table element layers above it are transparent.

Source

 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: Background on a column group element shows if all elements above its layer are transparent</title>
 5         <link rel="author" title="Microsoft" href="http://www.microsoft.com/">
 6         <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#table-layers">
 7         <meta name="flags" content="">
 8         <meta name="assert" content="A background set on a column group element will show if all table element layers above it are transparent.">
 9         <style type="text/css">
10             table
11             {
12                 background: red;
13                 border-collapse: collapse;
14             }
15             colgroup
16             {
17                 background: green;
18             }
19             td
20             {
21                 height: 2em;
22                 width: 2em;
23             }
24         </style>
25     </head>
26     <body>
27         <p>Test passes if there is no red visible on the page.</p>
28         <table>
29             <colgroup>
30                 <col>
31                 <col>
32                 <col>
33             </colgroup>
34             <tbody>
35                <tr>
36                     <td></td>
37                     <td></td>
38                     <td></td>
39                </tr>
40                <tr>
41                     <td></td>
42                     <td></td>
43                     <td></td>
44                </tr>
45                <tr>
46                     <td></td>
47                     <td></td>
48                     <td></td>
49                </tr>
50             </tbody>
51         </table>
52     </body>
53 </html>