Bootstrap Scroll to Top Button

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bootstrap demo</title>
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/css/bootstrap.min.css" rel="stylesheet"
    integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9" crossorigin="anonymous">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css"
    integrity="sha512-z3gLpd7yknf1YoNbCzqRKc4qyor8gaKU1qmn+CShxbuBusANI9QpRohGBreCFkKxLhei6S9CQXFEbbKuqLg0DA=="
    crossorigin="anonymous" referrerpolicy="no-referrer" />
  <style>
    /* Custom CSS for the button */
    #scrollToTopBtn {
      display: none;
      position: fixed;
      bottom: 20px;
      right: 30px;
    }
  </style>
</head>

<body>
  <div class="container p-3 shadow-sm">
 <div style="height: 2000px;">
      <h1>Bootstrap Scroll to Top of Page using Javascript</h1>
      <p>Scroll down to see the Scroll to Top button.</p>
    </div>

<button id="scrollToTopBtn" class="btn btn-primary"  title="Go to top">
      <i class="fas fa-arrow-up"></i> 
    </button>

</div>
  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/dist/umd/popper.min.js"
    integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r"
    crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/js/bootstrap.min.js"
    integrity="sha384-Rx+T1VzGupg4BHQYs2gCW9It+akI2MM/mndMCy36UVfodzcJcF0GGLxZIzObiEfa"
    crossorigin="anonymous"></script>
  <script>
    // Get the button element
    var scrollToTopBtn = document.getElementById("scrollToTopBtn");

// When the user scrolls down 20px from the top of the document, show the button
    window.onscroll = function () {
      if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
        scrollToTopBtn.style.display = "block";
      } else {
        scrollToTopBtn.style.display = "none";
      }
    };

// When the user clicks on the button, scroll to the top of the document
    scrollToTopBtn.onclick = function () {
      document.body.scrollTop = 0; // For Safari
      document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE, and Opera
    };
  </script>

</body>

</html>

 
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bootstrap demo</title>
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/css/bootstrap.min.css" rel="stylesheet"
    integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9" crossorigin="anonymous">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css"
    integrity="sha512-z3gLpd7yknf1YoNbCzqRKc4qyor8gaKU1qmn+CShxbuBusANI9QpRohGBreCFkKxLhei6S9CQXFEbbKuqLg0DA=="
    crossorigin="anonymous" referrerpolicy="no-referrer" />
  <style>
    /* Custom CSS for the button */
    #scrollToTopBtn {
      display: none;
      position: fixed;
      bottom: 20px;
      right: 30px;
    }
  </style>
</head>
​
<body>
  <div class="container p-3 shadow-sm">
 <div style="height: 2000px;">
      <h1>Bootstrap Scroll to Top of Page using Javascript</h1>
      <p>Scroll down to see the Scroll to Top button.</p>
    </div>
​
    <!-- Scroll to Top Button -->
    <button id="scrollToTopBtn" class="btn btn-primary"  title="Go to top">
      <i class="fas fa-arrow-up"></i> <!-- Font Awesome icon for "up" -->
    </button>
​
​
  </div>
  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/dist/umd/popper.min.js"
    integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r"
    crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/js/bootstrap.min.js"
    integrity="sha384-Rx+T1VzGupg4BHQYs2gCW9It+akI2MM/mndMCy36UVfodzcJcF0GGLxZIzObiEfa"
    crossorigin="anonymous"></script>
  <script>
    // Get the button element
    var scrollToTopBtn = document.getElementById("scrollToTopBtn");
​
    // When the user scrolls down 20px from the top of the document, show the button
    window.onscroll = function () {
      if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
        scrollToTopBtn.style.display = "block";
      } else {
        scrollToTopBtn.style.display = "none";
      }
    };
​
    // When the user clicks on the button, scroll to the top of the document
    scrollToTopBtn.onclick = function () {
      document.body.scrollTop = 0; // For Safari
      document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE, and Opera
    };
  </script>
​
</body>
​
</html>