> ## Documentation Index
> Fetch the complete documentation index at: https://adv-docs.pterocos.eu.org/llms.txt
> Use this file to discover all available pages before exploring further.

# How to change HTML CSS Javascript Preprocessors

**Pterocos supports preprocessors for HTML, CSS, and JavaScript: Two methods: Method 1: Outside the code editor from the file creation area,**

1. **Click on \[+ New File] button**
2. **Select (HTML CSS JS)**
3. **Click on \[Configuration] button.**
4. **Choose the preprocessors you want.**

**Method 2: Inside the Editor**

1. **Click on the gear button ⚙️ (you'll find it inside the editor cards on html, css or js)**
2. **Choose the preprocessor you want to change to**
3. **Save and done.**