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<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8">
<title>CSS Masking: mask invalidation.</title>
<style type="text/css">
div.outer {
background-color: purple;
position: absolute;
margin: 1px 2px 3px 4px;
border: solid purple;
width: 40px;
height: 20px;
}
div.inner {
width: 10px;
height: 10px;
border: 1px solid transparent;
will-change: transform;
}
div.mask {
mask-size: 100% 100%;
mask-origin: border-box;
mask-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg"><rect x="0" y="0" width="100%" height="50%" fill="blue" fill-opacity="1"/><rect x="0" y="50%" width="100%" height="50%" fill="blue" fill-opacity="0"/></svg>');
}
#d1 {
top: 10px;
left: 10px;
mask-clip: padding-box;
border-width: 10px;
padding: 0px;
}
#d2 {
top: 10px;
left: 110px;
mask-clip: padding-box;
border-width: 0px;
padding: 10px;
}
#d3 {
top: 15px;
left: 215px;
mask-clip: content-box;
border-width: 10px;
padding: 0px;
}
</style>
</head>
<body>
<div id="d1" class="outer mask"><div class="inner"></div></div>
<div id="d2" class="outer mask"><div class="inner"></div></div>
<div id="d3" class="outer mask"><div class="inner"></div></div>
<script type="text/javascript">
function invalidateMaskedElements()
{
// Shrink border area, thicken padding area. Keep ths size of this
// division unchanged.
document.getElementById("d1").style.borderWidth = "5px";
document.getElementById("d1").style.padding = "5px";
// Shrink padding area, thicken border area. Keep ths size of this
// division unchanged.
document.getElementById("d2").style.borderWidth = "5px";
document.getElementById("d2").style.padding = "5px";
// Shrink border area, thicken content area. Keep ths size of this
// division unchanged.
document.getElementById("d3").style.width = "50px";
document.getElementById("d3").style.height = "30px";
document.getElementById("d3").style.borderWidth = "0px";
document.documentElement.removeAttribute("class");
}
document.addEventListener("MozReftestInvalidate",
invalidateMaskedElements);
</script>
</body>
</html>
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