lovecoding
/
W250913


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .can{
            background-color: black;
            /* width: 900px;
            height: 200px; */
            position: fixed;
            top:40%;
            left: 40%;
        }
    </style>
</head>
<body>
    <canvas class="can" width="400" height="400"></canvas>
    <script>
        var oCan = document.getElementsByClassName("can")[0];
        var aCan = oCan.getContext("2d");
        aCan.strokeStyle = "white";
        aCan.lineWidth = 5;
        aCan.moveTo(0,0);
        aCan.lineTo(100,100);
        aCan.stroke();
    </script>
</body>
</html>