chromium/third_party/blink/web_tests/external/wpt/css/css-backgrounds/background-size-aspect-ratio.htm

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>CSS Test: Original aspect ratio of image is maintained when 'background-size: auto' and 'background-repeat: round'</title>
        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
        <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" />
        <meta name="assert" content="If 'background-repeat' is 'round' for one dimension only and if 'background-size' is 'auto' in the other dimension, then the other dimension is sclaed so that the original aspect ratio is restored." />
        <style type="text/css">
            .reference
            {
                width: 1in;
                height: 1in;
                background: url("../support/cat.png") no-repeat;
                background-size: 80px 80px;
            }
            .test1
            {
                width: 400px;
                height: 150px;
                border: thick solid black;
                background-image: url("../support/cat.png");
                background-repeat: round no-repeat;
                background-size: 83px auto;
                margin-bottom: 10px;
            }
            .test2
            {
                width: 150px;
                height: 400px;
                border: thick solid black;
                background-image: url("../support/cat.png");
                background-repeat: no-repeat round;
                background-size: auto 83px;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there are five unclipped cats in each of the two boxes, and if all the cats on the page are the same size.</p>
        <div class="reference"></div>
        <div class="test1"></div>
        <div class="test2"></div>
    </body>
</html>