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Introduction to CSS
Introduction to CSS
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17 units · 1 min · Easy
Overview
What is CSS?
How to Add CSS to HTML
CSS Selectors
Colors & Backgrounds
Typography
The Box Model
Width, Height & Overflow
Display & Visibility
Positioning
Flexbox
CSS Grid
Pseudo-classes & Pseudo-elements
CSS Variables
CSS Specificity & the Cascade
Your First Styled Webpage
Transitions & Animations
Responsive Design & Media Queries
Unit 13 of 17
CSS Variables
Updated Jun 2026
This unit has no content yet.
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