Add a Back to top button on long pages

Caution

Vintage themes aren't available in the Theme Store. Vintage themes don't have the features included in Shopify's Online Store 2.0 themes, and Shopify free vintage themes don't receive updates except security fixes.

Note

If you use a free theme from Shopify, then you can contact Shopify Support for help with this tutorial. It requires 15 minutes of design time. Learn more about the Shopify Design Policy.

Note

This customization is for vintage Shopify themes, and doesn't apply to Online Store 2.0 themes.

• Find out your theme's architecture version
• Explore Online Store 2.0 theme customizations

If you have pages that are long and require a lot of scrolling, then you can add a Back to the top button to your theme.

Create a back-to-the-top snippet

Desktop

1. From your Shopify admin, go to Online Store > Themes.
2. Find the theme you want to edit, click the … button to open the actions menu, and then click Edit code.
3. In the Snippets directory, click Add a new snippet.
4. Name your snippet back-to-the-top, then click Create snippet. Your snippet file opens in the code editor.
5. Paste the following code into your newly created back-to-the-top file:

{% comment %}
  Reduce below value if you need the back to the top button to appear higher up on the page.
  That value is in pixels.
{% endcomment %}
{% assign vertical_offset_for_trigger = 300 %}

{% comment %}
  Vertical offset from bottom of browser for the position of the button.
{% endcomment %}
{% assign position_from_bottom = '6em' %}
<a id="BackToTop" href="#" title="Back to the top" class="back-to-top hide">
  <span>Back to the top</span> <i class="fa fa-arrow-circle-o-up fa-2x"></i>
</a>
{{ '//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css' | stylesheet_tag }}
<style>
  .back-to-top {
    position: fixed;
    bottom: {{ position_from_bottom }};
    right: 0px;
    text-decoration: none;
    color: #999;
    background-color: #eee;
    font-size: 16px;
    padding: 0.3em;
    -webkit-border-top-left-radius: 3px;
    -webkit-border-bottom-left-radius: 3px;
    -moz-border-radius-topleft: 3px;
    -moz-border-radius-bottomleft: 3px;
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
    z-index: 60000;
  }
  .back-to-top i {
    vertical-align: middle;
  }
  .back-to-top span {
    padding-left: 0.5em;
  }
  .back-to-top i + span {
    padding-left: 0;
  }
  .back-to-top:hover {
    text-decoration: none;
    color: #555;
  }
  .hide {
    display: none!important;
  }
</style>
<script>
    (function() {
    function trackScroll() {
        var scrolled = window.pageYOffset;
        var coords = {{ vertical_offset_for_trigger }};
if (scrolled &#x3E; coords) {
    goTopBtn.classList.remove(&#x27;hide&#x27;);
    }
    if (scrolled &#x3C; coords) {
    goTopBtn.classList.add(&#x27;hide&#x27;);
    }
}

function backToTop() {
    if (window.pageYOffset &#x3E; 0) {
    window.scrollBy(0, -80);
    setTimeout(backToTop, 0);
    }
}

var goTopBtn = document.querySelector(&#x27;.back-to-top&#x27;);

window.addEventListener(&#x27;scroll&#x27;, trackScroll);
goTopBtn.addEventListener(&#x27;click&#x27;, backToTop);
})();
</script>

6. Click Save.

iPhone

1. From the Shopify app, tap the … button.
2. In the Sales channels section, tap Online Store.
3. Tap Manage themes.
4. Find the theme you want to edit, click the … button to open the actions menu, and then click Edit code.
5. In the Snippets directory, click Add a new snippet.
6. Name your snippet back-to-the-top, then click Create snippet. Your snippet file opens in the code editor.
7. Paste the following code into your newly created back-to-the-top file:

{% comment %}
  Reduce below value if you need the back to the top button to appear higher up on the page.
  That value is in pixels.
{% endcomment %}
{% assign vertical_offset_for_trigger = 300 %}

{% comment %}
  Vertical offset from bottom of browser for the position of the button.
{% endcomment %}
{% assign position_from_bottom = '6em' %}
<a id="BackToTop" href="#" title="Back to the top" class="back-to-top hide">
  <span>Back to the top</span> <i class="fa fa-arrow-circle-o-up fa-2x"></i>
</a>
{{ '//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css' | stylesheet_tag }}
<style>
  .back-to-top {
    position: fixed;
    bottom: {{ position_from_bottom }};
    right: 0px;
    text-decoration: none;
    color: #999;
    background-color: #eee;
    font-size: 16px;
    padding: 0.3em;
    -webkit-border-top-left-radius: 3px;
    -webkit-border-bottom-left-radius: 3px;
    -moz-border-radius-topleft: 3px;
    -moz-border-radius-bottomleft: 3px;
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
    z-index: 60000;
  }
  .back-to-top i {
    vertical-align: middle;
  }
  .back-to-top span {
    padding-left: 0.5em;
  }
  .back-to-top i + span {
    padding-left: 0;
  }
  .back-to-top:hover {
    text-decoration: none;
    color: #555;
  }
  .hide {
    display: none!important;
  }
</style>
<script>
    (function() {
    function trackScroll() {
        var scrolled = window.pageYOffset;
        var coords = {{ vertical_offset_for_trigger }};
if (scrolled &#x3E; coords) {
    goTopBtn.classList.remove(&#x27;hide&#x27;);
    }
    if (scrolled &#x3C; coords) {
    goTopBtn.classList.add(&#x27;hide&#x27;);
    }
}

function backToTop() {
    if (window.pageYOffset &#x3E; 0) {
    window.scrollBy(0, -80);
    setTimeout(backToTop, 0);
    }
}

var goTopBtn = document.querySelector(&#x27;.back-to-top&#x27;);

window.addEventListener(&#x27;scroll&#x27;, trackScroll);
goTopBtn.addEventListener(&#x27;click&#x27;, backToTop);
})();
</script>

8. Click Save.

Android

1. From the Shopify app, tap the … button.
2. In the Sales channels section, tap Online Store.
3. Tap Manage themes.
4. Find the theme you want to edit, click the … button to open the actions menu, and then click Edit code.
5. In the Snippets directory, click Add a new snippet.
6. Name your snippet back-to-the-top, then click Create snippet. Your snippet file opens in the code editor.
7. Paste the following code into your newly created back-to-the-top file:

{% comment %}
  Reduce below value if you need the back to the top button to appear higher up on the page.
  That value is in pixels.
{% endcomment %}
{% assign vertical_offset_for_trigger = 300 %}

{% comment %}
  Vertical offset from bottom of browser for the position of the button.
{% endcomment %}
{% assign position_from_bottom = '6em' %}
<a id="BackToTop" href="#" title="Back to the top" class="back-to-top hide">
  <span>Back to the top</span> <i class="fa fa-arrow-circle-o-up fa-2x"></i>
</a>
{{ '//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css' | stylesheet_tag }}
<style>
  .back-to-top {
    position: fixed;
    bottom: {{ position_from_bottom }};
    right: 0px;
    text-decoration: none;
    color: #999;
    background-color: #eee;
    font-size: 16px;
    padding: 0.3em;
    -webkit-border-top-left-radius: 3px;
    -webkit-border-bottom-left-radius: 3px;
    -moz-border-radius-topleft: 3px;
    -moz-border-radius-bottomleft: 3px;
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
    z-index: 60000;
  }
  .back-to-top i {
    vertical-align: middle;
  }
  .back-to-top span {
    padding-left: 0.5em;
  }
  .back-to-top i + span {
    padding-left: 0;
  }
  .back-to-top:hover {
    text-decoration: none;
    color: #555;
  }
  .hide {
    display: none!important;
  }
</style>
<script>
    (function() {
    function trackScroll() {
        var scrolled = window.pageYOffset;
        var coords = {{ vertical_offset_for_trigger }};
if (scrolled &#x3E; coords) {
    goTopBtn.classList.remove(&#x27;hide&#x27;);
    }
    if (scrolled &#x3C; coords) {
    goTopBtn.classList.add(&#x27;hide&#x27;);
    }
}

function backToTop() {
    if (window.pageYOffset &#x3E; 0) {
    window.scrollBy(0, -80);
    setTimeout(backToTop, 0);
    }
}

var goTopBtn = document.querySelector(&#x27;.back-to-top&#x27;);

window.addEventListener(&#x27;scroll&#x27;, trackScroll);
goTopBtn.addEventListener(&#x27;click&#x27;, backToTop);
})();
</script>

8. Click Save.

Include your snippet

1. In the Layouts folder, open the theme.liquid file.
2. Scroll to the bottom of the file. Right above the closing </body> tag, paste this code:

{% render 'back-to-the-top' %}

Your code should look like this:

3. Click Save.

Configure the back to the top button (optional)

To customize your back to the top button, click here and look at the first lines of your snippet.

• To change the position of your button relative to the bottom of the browser, edit the position_from_bottom value:

{% assign position_from_bottom = '4em' %}

• To change how far down a customer needs to scroll before the button is revealed, edit the vertical_offset_for_trigger value:

{% assign vertical_offset_for_trigger = 300 %}

Tip

The vertical_offset_for_trigger value must be set without units, and must be a pixel value.

Demo store

Visit the demo store to see an example of this customization.