<!DOCTYPE html>
<style>
#old-container {
    position: relative;
}

#positioned-child {
    position: absolute;
}

#descendant-needing-layout {
    display: none;
    width: 100px;
    height: 100px;
    background-color: green;
}
</style>
This test verifies adding transform to a block correctly update container status.
<div style="width:100px; height:100px; background-color:green;">
</div>