<html>
    <div style="width: 2000px; position: absolute; left: -9000px;">
        <table style="background-color:blue"><tr><td>

            <table id="table" style="width:100%; background-color:green; table-layout:fixed;"><tr><td>
                Content
            </td></tr></table>

        </td></tr></table>

    </div>
    <span id="result">This test failed. The width of the fixed table should be 1994px, which is based on the width of its containing div.</span>

    <script>
        var table = document.getElementById("table");
        var result = document.getElementById("result");
        if (window.getComputedStyle(table, null).getPropertyValue("width") == "1994px")
            result.innerHTML = "Success! The width of the fixed table is 1994px, which is based on the width of its containing div.";
    </script>
</html>