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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: Blur an HTML Element Using a Negative Calc Function Value</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-blur">
<link rel="match" href="blur-calc-negative-ref.html">
<meta name="assert"
content="Given a calc() value that evaluates to a negative result, the
CSS blur filter function should not blur an HTML element.">
<style type="text/css">
#target {
filter: blur(calc(-10px));
background-color: #0f0;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<p>You should see a green square.</p>
<div id="target"></div>
</body>
</html>
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