der();

      const signInButton = document.getElementById("signInButton");
      const signOutButton = document.getElementById("signOutButton");
      const message = document.getElementById("message");
      const userName =document.getElementById("userName");
      const userEmail =document.getElementById("userEmail");

      signOutButton.style.display = "none";
      message.style.display = "none";

      const userSignIn = async() => {
        signInWithPopup(auth, provider)
        .then((result) => 