div>

        <h3>Wait text section</h3>
        <script>
            function button_wait() {
            setTimeout(function() {
            document.getElementById("wait-span").innerHTML = "super" + "-" + "secret" + "-" + "text";
            }, 5000);
            }
        </script>
        <button id="wait-button" onclick="button_wait()">Test</button>
        <span id="wait-span"></span>

        <h3>Wait for has class section</h3>
        <script>
            function button_add_class() {
            s