---
title: Custom CSS and JavaScript on checkout
description: "You can add custom CSS and JavaScript to the HomeRunner checkout page. Both are supported. To add styles, use your theme's **Additional CSS** field, a…"
url: "https://homerunner.io/docs/can-i-add-custom-css-or-javascript-to-the-homerunner-checkout-page/"
updated: "2026-10-26"
category: Theme and design
---

# Custom CSS and JavaScript on checkout

You can add custom CSS and JavaScript to the HomeRunner checkout page. Both are supported.

To add styles, use your theme's **Additional CSS** field, a code-snippets plugin, or enqueue them on the checkout page.

HomeRunner markup uses stable, prefixed class names that you can target safely, such as .homelocal-checkout, .homelocal-checkout-overview, and .checkout-notice.

Still stuck? [Contact the HomeRunner team](https://homerunner.io/contact/) with your site address and what you tried, and we take it from there.