LayoutTests/webanimations/accelerated-translate-animation-with-transform-expected.html

<style>

    #target {
        position: absolute;
        top: 0;
        left: 0;
        width: 100px;
        height: 100px;
        background-color: black;
        transform: translateX(150px);
    }

</style>
<div id="target"></div>