<!DOCTYPE html>
<html>
<head>
<title>CSS Filter Test: Test opacity shorthand with value 0</title>
<link rel="author" title="Naohiro Nakajima" href="mailto:[email protected]">
<link rel="reviewer" title="Dirk Schulze" href="mailto:[email protected]">
<link rel="help" href="http://www.w3.org/TR/filter-effects-1/#FilterProperty">
<link rel="help" href="https://www.w3.org/TR/filter-effects-1/#funcdef-filter-opacity">
<link rel="match" href="reference/filters-opacity-002-ref.html">
<meta name="assert" content="CSS opacity filter will apply a transparency to the div element.
Since opacity is 0, it has affect on the div to be transparent.">
<style type="text/css">
.box1{
width:200px;
height: 200px;
background: green;
}
.box2{
width: 200px;
height: 200px;
background: red;
filter: opacity(0);
}
</style>
</head>
<body>
<p>Test filter opacity CSS shorthand. You should see a green box.</p>
<!-- PAGE CONTENT -->
<div class="box1"></div>
<div class="box2"></div>
</body>
</html>