<style>

div {
    position: absolute;
    top: 0;
    left: 0;
    width: 100px;
    height: 100px;
    background-color: black;

    will-change: scale;
    scale: 0.5;

    animation-name: scale;
    animation-delay: 1000s;
    animation-duration: 1000s;
}

@keyframes scale {
    from { scale: 2 }
    to { scale: 2 }
}
    
</style>
<div></div>
<script src="resources/wait-until-animations-are-committed.js"></script>