How to Add a Back to Top Button on Squarespace

Table of Contents

• Step 1 - The HTML
• Step 2 - The JavaScript
• Step 3 - The CSS

Do you have a Squarespace website and are using a template that doesn't have a back to top button? Here's how you can add a back to top button to any Squarespace template.

Here's what the button will look like, it'll appear in the bottom right.

Step 1 - The HTML

First, log into your Squarespace website and add the following code to SETTINGS → ADVANCED → CODE INJECTION → FOOTER.

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/js/all.min.js" crossorigin="anonymous"></script>
<button onclick="topFunction()" id="myBtn" title="Go to top">
    <i class="fas fa-arrow-up"></i>
</button>

This code will provide the actual button for us to style. It won't do anything by itself just yet.

Step 2 - The JavaScript

We're now going to add in the JavaScript which gives our button the function we need (scrolling back to the top). Add the following code to SETTINGS → ADVANCED → CODE INJECTION → FOOTER. Add this code just below the code we added in step 1.

<script>
   window.onscroll = function() {scrollFunction()};

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

   function topFunction() {
      $('html,body').animate({ scrollTop: 0 }, 0);
   }
</script>

Step 3 - The CSS

The following code is what gives style to our button. It also enabled the scroll to the top to be smooth. Add the following code to the DESIGN → CUSTOM CSS section.

html {
  scroll-behavior: smooth !important;
}

#myBtn {
   width: 50px;
   height: 50px;
   display: none;
   position: fixed;
   bottom: 20px;
   right: 30px;
   z-index: 99;
   border: none;
   outline: none;
   font-size: 25px !important;
   color: white;
   cursor: pointer;
   padding: 10px 10px 10px 11px;
   border-radius: 50%;
   box-shadow: 1px 1px 5px #000;
   /* Change the hex code in the next line to change background color */
   background-color: #a4a4a4;
}

#myBtn:hover {
   background-color: #aeaeae;
}

That should do it! You should be able to see the button in the bottom right. It appears after a visitor scrolls a little bit down the website. If you have any questions, feel free to comment and I'll answer them as soon as possible.

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Source: The code from W3Schools was adapted for this tutorial.