As projects grow, a single CSS file becomes hard to manage.
Large projects need organized CSS so developers can find, update, and debug styles easily.
Professional teams always structure CSS in a clean and logical way.
Splitting CSS into multiple files keeps code clean.
Each file has a clear responsibility, making teamwork easier.
Base files contain global styles used everywhere.
These include fonts, colors, and resets.
Component files store reusable UI elements.
This prevents code duplication and keeps styles consistent.
Common CSS file structure
- base.css for global styles
- layout.css for grids and sections
- components.css for buttons and cards
- pages.css for page specific styles
Layout files control major page sections.
They define structure, not small design details.
Practice task
Create a folder structure and:
- Separate base styles
- Separate layout styles
- Separate component styles
- Move existing CSS into correct files
Next lesson
In the next page, you will learn how to avoid common CSS mistakes.