<!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true ] -->

<html>
<head>
    <meta name="viewport" content="initial-scale=1.0">
    <style>
        body {
            height: 2000px;
            margin: 0;
        }

        .fixed {
            position: fixed;
        }
        
        .fixed-bar {
            position: fixed;
            top: 10px;
            left: 0;
            height: 100px;
            width: 400px;
            background-color: blue;
        }
    </style>
</head>
<body class="fixed">
    <div class="fixed-bar"></div>
</body>
</html>