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<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE html>
<html>
<head>
<title>CSS Filters: Invert an HTML Element Using a Factor of One Half</title>
<link rel="author" title="Max Vujovic" href="mailto:mvujovic@adobe.com">
<link rel="help" href="http://www.w3.org/TR/filter-effects-1/#funcdef-invert">
<link rel="match" href="invert-half-ref.html">
<meta name="assert"
content="Given a factor of one half, the CSS invert filter function
should change the color of an HTML element to gray.">
<style type="text/css">
#target {
filter: invert(0.5);
background-color: #f00;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<p>You should see a gray square.</p>
<div id="target"></div>
</body>
</html>
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