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Johns Hopkins University

Introduction to CSS3

Do you realize that the only functionality of a web application that the user directly interacts with is through the web page? Implement it poorly and, to the user, the server-side becomes irrelevant! Today’s user expects a lot out of the web page: it has to load fast, expose the desired service, and be comfortable to view on all devices: from a desktop computers to tablets and mobile phones. This course provides a comprehensive introduction to webpage styling and layout using CSS. It will discuss how one can select and target specific HTML elements, apply styles using CSS properties, and interact with the CSS box model. Additionally, the course teaches key CSS concepts, including selectors, specificity, inheritance, units of measurement, positioning, and floats. The course will also cover responsive design principles and how to use media queries to create websites that adapt to different screen sizes. Additionally, the course will introduce Bootstrap, a popular CSS framework, and demonstrates how to use its grid system to build responsive layouts efficiently. By the end of the course, learners have a solid foundation in CSS and be able to create visually appealing and responsive websites.

Status: Cascading Style Sheets (CSS)
Status: User Interface and User Experience (UI/UX) Design
Course11 hours

Featured reviews

A

5.0Reviewed May 21, 2025

This course helped me to understand concept which previously I struggled to understand.

MM

5.0Reviewed Apr 12, 2025

very good course to learn the basics, very well explained and fun

CC

5.0Reviewed Jul 10, 2025

This course makes me understand how CSS works that can be difficult by just reading a book.

HI

5.0Reviewed Dec 9, 2024

Good introductory course, recommended for beginners

EE

4.0Reviewed Feb 3, 2025

It's great for learning the fundamentals, but it's already outdated, specially with the new features rolling out for CSS3

AP

4.0Reviewed Dec 26, 2024

It's a good short introduction, well explained, with good opportunity to test the new skills in the final assignment.

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