invert-half-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: Invert an HTML Element Using a Factor of One Half</title>

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

  <style type="text/css">

    #target {

      background-color: rgb(127, 127, 127);

      width: 100px;

      height: 100px;

  </style>

</head>

<body>

  <p>You should see a gray square.</p>

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

</body>

</html>