# Introduction and purpose — CSS Architecture

Source: https://www.geekswithgeeks.com/en/css-architecture/css-architecture-01

> Use Introduction and purpose as a clear part of CSS Architecture.

## The essential idea

**Introduction and purpose** is a practical part of CSS Architecture. Begin with the problem it solves, then identify the input, transformation, and result. This prevents syntax from becoming disconnected facts.

## See the learning path

This topic is one step between a source idea and a useful, checked outcome.

![A visual learning path for CSS Architecture.](assets/figures/css-architecture/css-architecture-learning-map.svg) — Figure 1.1 — Keep the whole path visible.

## Common pitfall

Do not learn **Introduction and purpose** by copying a finished answer. Reduce it to a small example and use the result to test your explanation.

Quick check

**Quiz:** What is a strong first practice for Introduction and purpose?

- [x] Run one focused example.
- [ ] Memorize without testing.
- [ ] Ignore feedback.

*Answer:* Run one focused example.. Focused experiments show cause and effect.