What is CSS and Why It Matters


CSS stands for Cascading Style Sheets.

It is used to control how web pages look and feel.

HTML creates the structure of a website.

CSS adds colors, fonts, spacing, and layout to make the website beautiful.

Why CSS Is Important

Without CSS, websites would look plain and boring.

CSS makes websites:

  • Attractive
  • Easy to read
  • Professional

Real-Life Example

Imagine a house.

HTML is the walls and rooms.

CSS is the paint, decoration, and furniture.

What CSS Can Do

With CSS, you can:

  1. Change text colors
  2. Set background colors
  3. Adjust spacing
  4. Control layouts

This page works, but it looks very basic.

With just a little CSS, the same page looks much better.

Why CSS Matters for Jobs

Every frontend developer must know CSS.

Companies expect developers to create beautiful and usable websites.

Where CSS Is Used

CSS is used in:

  • Websites
  • Web applications
  • Mobile apps
  • Online platforms

Learning CSS Step by Step

You do not need to be an artist.

CSS is a skill that anyone can learn with practice.

Practice Task

Open any HTML page and think:

  1. How would you make it look better using CSS?

What You Will Learn Next

In the next lesson, you will learn how CSS works with HTML.