Master CSS selectors, specificity, Flexbox, and CSS Grid with hands-on exercises. Build modern layouts with live preview and instant feedback. Practice from basic selectors to complex grid layouts in your browser.
This free interactive CSS selectors and layout course takes you from the fundamentals of targeting HTML elements all the way through building real-world page layouts with Flexbox and CSS Grid. You will start with element, class, and ID selectors, then work through combinators, attribute selectors, and pseudo-classes like hover states, nth-child, and structural variants. A dedicated module on specificity demystifies why some CSS rules win over others, giving you the mental model to debug styling conflicts with confidence.
The course is built around hands-on practice in your browser, with live preview and instant feedback at every step. Each concept gets its own coding exercise so you can apply what you just read before moving on. The Flexbox module covers direction, wrapping, justification, and alignment properties, while the CSS Grid module walks through template columns and rows, gap settings, and named grid areas for precise placement.
This course suits beginners who know basic HTML and want to write CSS that actually does what they intend. It also works well for self-learners refreshing a skill or students building their first portfolio projects. No sign-up is required to start. Finishing the course and passing the final exam earns you a certificate of completion you can share on LinkedIn or add to your resume.
8 modules • 27 lessons
The course covers eight modules: selector basics (element, class, ID), combinators, attribute selectors, pseudo-classes including nth-child, specificity calculation, Flexbox layout, CSS Grid layout, and a final set of real-world practice challenges. Every module includes browser-based coding exercises with instant feedback.
Yes, the entire course is free and no account is required to start. Completing all lessons and passing the final exam earns you a certificate of completion at no cost, which you can add to your LinkedIn profile or resume.
A basic familiarity with HTML is helpful since CSS selectors target HTML elements. No prior CSS experience is needed. The course builds from the simplest selectors up through complex grid layouts, so complete beginners can follow along step by step.
The course teaches both Flexbox and CSS Grid. The Flexbox module covers flex direction, wrapping, justify-content, align-items, and flex item properties. The CSS Grid module covers template columns and rows, gap and alignment, and grid areas for placing content in named sections.
Each lesson includes a live coding environment in the browser where you write CSS and see the result immediately without any setup or installation. The final Practice Challenges module includes dedicated selector, Flexbox, Grid, and real-world layout exercises to reinforce everything covered in earlier modules.

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