blur-em-radius-ref.html

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<!--

     Any copyright is dedicated to the Public Domain.

     http://creativecommons.org/publicdomain/zero/1.0/

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<!DOCTYPE html>

<html>

<head>

  <title>CSS Filters: Blur an HTML Element Using a Radius in Ems</title>

  <link rel="author" title="Max Vujovic" href="mailto:mvujovic@adobe.com">

  <style type="text/css">

    #target {

      filter: url(#blur);

      background-color: #0f0;

      width: 100px;

      height: 100px;

  </style>

</head>

<body>

  <p>You should see a blurred green square.</p>

  <div id="target"></div>

  <svg width="0" height="0">

    <filter id="blur">

      <feGaussianBlur stdDeviation="3" color-interpolation-filters="sRGB"/>

    </filter>

  </svg>

</body>

</html>