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<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<style>
#parent {
transform: rotateZ(1deg);
position: absolute;
opacity: 0.5;
overflow-x: hidden;
}
#child {
width: 10px;
height: 10px;
}
.blend {
mix-blend-mode: color-burn;
}
</style>
</head>
<body>
<div id="parent">
<div id="child">a</div>
</div>
<div>
<div id="blend">a</div>
</div>
<script type="text/javascript">
function modify() {
var e = document.getElementById("child");
e.style.backgroundColor = "red";
setTimeout(addBlend, 0);
}
function addBlend() {
var e = document.getElementById("blend");
e.classList.add("blend");
}
// setTimeout(modify, 3000);
window.addEventListener("MozAfterPaint", modify);
</script>
</body>
</html>
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