<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>HTML MSE test: video is shown</title>
    <link rel="author" title="Alicia Boya García" href="mailto:aboya@igalia.com">
    <style>
        html, body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background: white;
        }
        body {
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
        }
        #video {
            width: 320px;
            height: 240px;
            background: #1a23ff;
        }
        #explanation {
            position: absolute;
            top: 260px;
        }
    </style>
</head>
<body>
<div id="video"></div>
<div id="explanation">A video containing a blue static image should be visible above.</div>
</body>
</html>