<!DOCTYPE html>
<script src="../../fast/repaint/resources/text-based-repaint.js"></script>
<style>
#container {
position: absolute;
z-index: 0;
left: 50px;
top: 50px;
}
.child {
position: absolute;
width: 40px;
height: 40px;
background-color: red;
}
.embiggen {
width: 50px;
height: 50px;
background-color: green;
}
</style>
<div style="width:200px; height:200px; transform: translateZ(0px); background-color: lightblue"></div>
<div id="container">
<span class="child"></span>
<span class="child"></span>
</div>
<script>
function repaintTest() {
document.querySelectorAll('.child')[1].classList.add('embiggen');
}
runRepaintTest();
</script>