How to use custom CSS?

Oh! Support

Last Update 2 個月前

Want to take your store’s design to the next level? This guide shows you how to add custom CSS to your Shopify theme, allowing you to fine-tune the appearance of elements beyond the default theme settings. Whether you're adjusting fonts, colours, spacing, or layout styles, using custom CSS gives you full control to create a truly unique storefront experience.


  • Step 1: Log in to your Shopify admin


  • Step 2: In the left-hand sidebar, click Online Store, then select Themes.


  • Step 3: Find the theme you’re using and click the “Customize” button.


  • Step 4: Right-click on the element you want to style and click “Inspect” (or press Ctrl+Shift+I / Cmd+Option+I on your keyboard). This will open your browser’s developer tools and highlight the element in the code. Copy the class, ID, or HTML structure you want to target with CSS. 


  • Step 5: Return to the theme editor tab, and in the left sidebar, click Theme Settings, then locate the Custom CSS section.


  • Step 6: Add your custom CSS code: Paste the selector you found and write your custom CSS rules. 


For example, if you want the button to be bigger or smaller

  • Step 7: Click Save, then refresh your storefront to see your custom styles applied.

Troubleshooting Tips

  • App Widget Not Showing?
    Double-check that the toggle is set to "On" and that you’ve saved your changes. If it’s still not appearing, ensure your theme supports app embeds (most modern Shopify themes do!).

  • Need Additional Help?
    If you have inquiries, please do not hesitate to reach out to us via our email at [email protected] or via chat.

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