author CJKu <>
Thu, 26 May 2016 16:07:50 +0800
changeset 371270 95eb777b8c349f0e76a9b7e00ab9c1ae9e43d0ef
child 383423 67f25d3c77342147e1e5c4230d448a804f3d1f47
permissions -rw-r--r--
Bug 1275451: Part 2. SVG mask composition reftests MozReview-Commit-ID: Cm727rK5MZ0

<!DOCTYPE html>
    <meta charset="utf-8">
    <title>CSS Masking: mask-composite: compose svg mask</title>
    <link rel="author" title="CJ Ku" href="">
    <link rel="author" title="Mozilla" href="">
    <link rel="help" href="">
    <link rel="match" href="mask-composite-1-ref.html">
    <meta name="assert" content="Test checks that vector-mask-image can be composed correctly by different mask-composite value.">
    <svg height="0">
      <mask id="rectMask" x="0" y="0" width="100" height="100" >
        <rect x="0" y="50" width="100" height="50" style="stroke:none; fill: #ffffff"/>
    <style type="text/css">
      div {
        background-color: blue;
        position: absolute;
        margin: 0px;
        padding: 0px;
        width: 100px;
        height: 100px;
        mask-image: url(#rectMask),

      div.add {
        left: 10px;
        mask-composite: add;

      div.substract {
        left: 120px;
        mask-composite: substract;

      div.intersect {
        left: 230px;
        mask-composite: intersect;

      div.exclude {
        left: 340px;
        mask-composite: exclude;
    <div class="add"></div>
    <div class="substract"></div>
    <div class="intersect"></div>
    <div class="exclude"></div>