<script src="include.js"></script>
<script>
    test(() => {
        let a = document.createElement("div");
        let b = document.createElement("div");
        a.appendChild(b);
        document.body.appendChild(a);

        b.style = 'width: 100px;';

        println(b.offsetWidth);
        a.style.display = 'none';
        println(b.offsetWidth);
    });
</script>