CSS Tutorial

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CSS Tutorial

What is CSS?

CSS is the language we use to style an HTML document.

CSS describes how HTML elements should be displayed.

This tutorial will teach you CSS from basic to advance.

Start learning CSS now »

Examples in Each Chapter

This CSS tutorial contains hundreds of CSS examples.

With our online editor, you can edit the CSS and click on a button to view the result.

CSS Example

body {
  background-color: lightblue;

h1 {
  color: white;
  text-align: center;

p {
  font-family: verdana;
  font-size: 20px;
Try it Yourself »

Click on the "Try it Yourself" button to see how it works.

CSS Examples

Learn from over 300 examples! With our editor, you can edit the CSS, and click on a button to view the result.

Go to CSS Examples!

Use the Menu

We recommend reading this tutorial, in the sequence listed in the menu.

If you have a large screen, the menu will always be present on the left.

If you have a small screen, open the menu by clicking the top menu sign .

CSS Templates

We have created some responsive W3.CSS templates for you to use.

You are free to modify, save, share, and use them in all your projects.

Free CSS Templates!

CSS Exercises

Test Yourself With Exercises


Set the color of all <p> elements to red.


CSS Quiz

Test your CSS skills with a quiz.

CSS Quiz!

CSS References

At W3Schools, you will find complete CSS references of all properties and selectors with syntax, examples, browser support, and more.

What is CSS? Why is it needed?

CSS (Cascading Style Sheets) is a style description language that plays an important role in creating beautiful and user-friendly websites.

Why is learning CSS key to being a successful web developer?

  • Appearance: HTML defines textual content, while CSS defines its visual structure, layout, and aesthetics. Without CSS, websites would be less attractive and difficult for users to access. Knowledge of CSS allows us to create a beautiful design, change colors, fonts, positioning of elements and much more.
  • Load Speed: CSS helps reduce code size, which improves page load speed. With a single CSS rule, you can apply styles to all occurrences of a particular tag in an HTML document.
  • User Experience: Well-designed buttons, logically arranged text and user-friendly design make the website more understandable for users. CSS helps improve their website experience.
  • Efficient Development: With CSS, you can apply styles to multiple pages with a single line of code. For example, if you have pages that have the same format, you can use one CSS file for all those pages. If necessary, the design of such pages can be easily changed by changing only the content of the CSS file.