Scroll Back To Top button

Bootstrap Scroll Back To Top button - examples & tutorial

Back To Top button built with Bootstrap 5. Learn how to create a button that appears when you start scrolling and, when clicked, takes you to the top of the page.

To learn more read Buttons Docs.


Basic example

        
            
          <!-- Back to top button -->
          <button type="button" class="btn btn-danger btn-floating btn-lg" id="btn-back-to-top">
            <i class="fas fa-arrow-up"></i>
          </button>

          <!-- Explanation -->
          <div class="container mt-4 text-center" style="height: 2000px;">
            <p>
              Start scrolling the page and a strong
              <strong>"Back to top" button </strong> will appear in the
              <strong>bottom right corner</strong> of the screen.
            </p>

            <p>
              Click this button and you will be taken to the top of the page.
            </p>
          </div>
        
        
    
        
            
                      #btn-back-to-top {
                        position: fixed;
                        bottom: 20px;
                        right: 20px;
                        display: none;
                      }
                    
        
    
        
            
                      //Get the button
                      let mybutton = document.getElementById("btn-back-to-top");
                  
                      // When the user scrolls down 20px from the top of the document, show the button
                      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
                      mybutton.addEventListener("click", backToTop);
                  
                      function backToTop() {
                        document.body.scrollTop = 0;
                        document.documentElement.scrollTop = 0;
                      }