<!DOCTYPE html>
<html>
<head>
<title>CSS Filters Animation: Brightness Reference</title>
<link rel="author" title="Gunther Brunner" href="mailto:[email protected]">
<link rel="reviewer" title="Dirk Schulze" href="mailto:[email protected]">
<link rel="reviewer" title="Rebecca Hauck" href="mailto:[email protected]">
<style type="text/css">
.square {
width: 100px;
height: 100px;
background: blue;
filter: brightness(50%);
}
</style>
</head>
<body>
<p>You should see a dark blue rectangle. Neither black nor blue.</p>
<div class="square"></div>
</body>
</html>