File: mix-blend-mode-canvas-sibling.html

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<!DOCTYPE html>
<html>
    <head>
        <title>CSS Test: Canvas with mix-blend-mode blends with sibling element</title>
        <link rel="author" title="Mihai Tica" href="mailto:mitica@adobe.com">
        <link rel="help" href="https://drafts.fxtf.org/compositing-1/#mix-blend-mode">
        <meta name="assert" content="Test checks that a canvas element having mix-blend-mode applied blends with a sibling element.">
        <meta name="flags" content="dom"/>
        <link rel="reviewer" title="Rik Cabanier" href="mailto:cabanier@adobe.com">
        <link rel="reviewer" title="Mirela Budaes" href="mailto:mbudaes@adobe.com">
        <link rel="match" href="reference/mix-blend-mode-canvas-sibling-ref.html">
    </head>
    <body>
        <p>Test passes if you can see a green rectangle. <br>
        If blending is not performed, the canvas is displayed with red. </p>
        <div style="width: 100px; height: 100px; background: #FF0;"></div>
        <canvas id="cvs" width="100" height="100" style="mix-blend-mode: difference; position: relative; top: -100px;"></canvas>
        <script type="text/javascript">
            var canvas = document.getElementById("cvs");
            var context = canvas.getContext("2d");

            context.fillStyle = "#F00";
            context.fillRect(0, 0, 100, 100);
        </script>
    </body>
</html>