background-alpha-005

CSS Backgrounds: Overlapped alpha transparent backgrounds

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 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: CSS Backgrounds: Overlapped alpha transparent backgrounds</title>
 5   <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch">
 6   <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/background/alpha/005.html" type="text/html">
 7   <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/background/alpha/005.xml" type="application/xhtml+xml">
 8   <link rel="help" href="http://www.w3.org/TR/CSS21/colors.html#background">
 9   <style type="text/css">
10    html { background: white url(support/background-alpha-test.png) fixed; color: black; }
11    p { background: white; color: black; padding: 0.25em; border: thin solid black; display: inline; line-height: 2; }
12    div { height: 512px; width: 512px; margin: 5em auto 100em; background: url(support/background-alpha-test.png) fixed; border: 1px dotted black; }
13   </style>
14  </head>
15  <body>
16   <p>This document has a white background overlayed with a fixed-positioned image with a multi-bit alpha channel. In the middle of the page is a square div with a height the size of two tiles, with the same background, also fixed. This should have the effect of darkening the transparent area with the colour splodges.</p>
17   <div>
18  
19 </div></body>
20 </html>