ipt>
    let mybutton = document.getElementById("bttbutton");
    window.onscroll = function () {
      scrollFunction();
    };

    function scrollFunction() {
      if (
        document.body.scrollTop > 20 ||
        document.documentElement.scrollTop > 20
      ) {
        mybutton.style.display = "block";
      } else {
        mybutton.style.display = "none";
      }
    }

    // When the user clicks on the button, scroll to the top of the document
    function topFunction() {
      document.body.sc