Free
Course

Learn CSS: Variables and Functions

Create websites viewable on devices of all sizes using responsive design techniques, such as relative sizing units and media queries.

4.57 out of 5 stars
This course includes
3,081 learners enrolled
This course includes
  • Skill level

    Beginner
  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
    2 hours
  • Projects

    1
  • Prerequisites

    None

About this course

Continue your CSS learning journey with Learn CSS: Responsive Design. As a website developer, it’s your responsibility to ensure that your websites remain legible and visually appealing across a variety of devices. You can also increase the accessibility of your website by using responsive design techniques.

Skills you'll gain

  • Use relative sizing units

  • Implement media queries

  • Scale websites across devices

Syllabus

The platform

Hands-on learning

Animated GIF of an AI provided error explanation within Codecademy's learning environment
An AI-generated hint within the instructions of a Codecademy project
Animated GIF of Codecademy's Job Readiness Checker tool generating a compatibility report for a senior software engineer role
Animated GIF of building a phone screen interview using Codecademy's Interview Simulator
A fill-in-the-blank JavaScript question in a Codecademy assessment
Meet the creator of the course
Jiwon Shin
Senior Curriculum Developer at Codecademy
Jiwon is a Senior Curriculum Developer at Codecademy. She has created courses across the web development catalog on languages such as JavaScript, PHP, and CSS, frameworks like React and Node.js, and the Front-End Engineer Career Path. She also created courses on p5.js, build tools, and Intro to UI and UX Design.

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  • Show proofReceive a certificate that demonstrates you've completed a course or path.
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Learn CSS: Variables and Functions course ratings and reviews

4.57 out of 5 stars
100 ratings
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  5. 1 star
  • The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.
    Chris
    Codecademy Learner @ USA
  • I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.
    Rodrigo
    Codecademy Learner @ UK
  • Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.
    John-Andrew
    Codecademy Learner @ USA

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Join over 50 million learners and start Learn CSS: Variables and Functions today!

Unlock additional features with a paid plan

  • Practice Projects

    Guided projects that help you solidify the skills and concepts you're learning.
  • Assessments

    Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.
  • Certificate of Completion

    Earn a document to prove you've completed a course or path that you can share with your network.