Untitled

<!DOCTYPE html>
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<html>
    <head>

        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script>

        </script>
    </head>
    <body>
        <script>
            var canvasElem = document.getElementById('canvas');
            var ctx = canvasElem.getContext('2d');

            ctx.moveTo(150,150);
            ctx.lineTo(200,200);
            ctx.stroke();
        </script>

        <canvas width="200" height="200" id="canvas">

        </canvas>

    </body>
</html>