<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css">
    		*{
    			margin: 0;
    			padding: 0;
    		}
        body{
            position: absolute;
            height: 100%;
            width: 100%;
            background-color: #000000;
        }
        .c1{
            width: 100%;
            height: 100%;
        }
    </style>
</head>
<body>
<div class="c1" ></div>
</body>
</html>