<!DOCTYPE html>
<html>
    <head>
        <title>CSS Test: color-filter reference</title>
        <link rel="author" title="Apple" href="http://www.apple.com/">

        <style type="text/css">
            .test
            {
                height: 200px;
                width: 200px;
                margin: 10px;
                color: green;
                border: 4px solid blue;
            }
            
            .first
            {
                background-color: currentColor;
            }
            
            .second > div {
                width: 100%;
                height: 100%;
                background-color: currentColor;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there are two green squares with a blue border.</p>
        <div class="test first"></div>
        <div class="test second"><div></div></div>
    </body>
</html>