ttons are shown as loading:</p>
                <button></button>
                <button disabled></button>
                <script>
                    const buttons =
                        document.currentScript.parentElement.getElementsByTagName(
                            "button",
                        );
                    for (let btn of buttons) {
                        btn.addEventListener("click", function () {
                            const className = this.className || "No Class";
   