<!DOCTYPE html>
<style>
#star {
    cursor: pointer;
    font-size: 100px;
    color: black;
    margin : 40px;
}
#star:hover {
  color:red;
}
</style>
<img id='star' src='' alt='&#9733;'/>
<script>
    if (window.testRunner) {
        testRunner.waitUntilDone();
        var star = document.getElementById('star');
        eventSender.mouseMoveTo(star.offsetLeft + 2, star.offsetTop + 2);
        window.requestAnimationFrame(function() {
            testRunner.notifyDone();
        });
    }
</script>