<!DOCTYPE html>
<style>
#container {
height: 300px;
width: 300px;
background-color: green;
transform: translateZ(0);
}
#parent {
position: absolute;
left: 400px;
width: 300px;
height: 300px;
background-color: green;
transform: translateZ(0);
}
</style>
<body>
<div id="container">
<div id="parent">
</div>
</div>
</body>