---
title: "Add Custom Code to the Template"
slug: "add-custom-code-to-the-template"
description: "Covers adding custom HTML, CSS, or JavaScript code to a Web Template through the Advanced Settings option inside the Action Builder's Design tab area."
updated: 2026-01-06T06:50:40Z
published: 2026-01-06T06:50:40Z
canonical: "academy.insiderone.com/add-custom-code-to-the-template"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://academy.insiderone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Add Custom Code to the Template

The **Advanced Settings** in the top bar let you add custom HTML and CSS to change your website, or run custom JavaScript.

1. Click the **Advanced Settings** button on the Design tab and select the option to customize your website.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-UYNH5CA2.png)

1. Enter the code to make the necessary changes. Click the **Save Code** button.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-U0CPIY0H.png)