<!DOCTYPE html>
    <div id="div" style="display: none;">
        <span id="span"></span>
    </div>
<script src="../resources/runner.js"></script>
<script>
        var div = document.getElementById("div");
        var style = div.style;

        function test() {
            style.display = "block";
            PerfTestRunner.forceLayout();

            for (var i = 0; i < 1000; ++i)
                span.appendChild(document.createElement("span")).textContent = "span";
            PerfTestRunner.forceLayout();

            style.display = "none";
            span.innerHTML = '';
            PerfTestRunner.forceLayout();
        }

        PerfTestRunner.measureRunsPerSecond({
        description: "Measures performance of attaching a large number of inlines to an inline.",
        run: test
        });
</script>
</html>