freeCodeCampCertificate
HTML & CSSBeginner
Responsive Web Design
freeCodeCamp's foundational web design curriculum. Learn HTML, CSS, flexbox, grid, and responsive design by building 20 projects. Free certificate included.
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Free HTML & CSS Courses
HTML and CSS aren't optional. Every website, no matter what framework sits on top of it, starts here, and skipping this step is the most common reason beginners get stuck once they hit a framework tutorial. freeCodeCamp's Responsive Web Design certificate is the most complete free path: it covers flexbox, grid, and accessibility basics in one structured course. Khan Academy and The Odin Project both offer gentler starting points if you want visuals over text. Once the basics click, Google's Web Fundamentals and CSS Animations courses cover the layer most tutorials skip: performance and motion, the details that separate a functional page from one that feels polished.
8Free courses
2With certificate
Related Learning Paths
Build projects in HTML & CSS
Editorial Guides
Best Free CSS Courses 2026 →Best Free Frontend Development Courses in 2026 (Ranked by Platform and Step) →2 free HTML & CSS courses include a certificate
See all free coding courses with certificates →Every free HTML & CSS course
HTML & CSSBeginner
Intro to HTML/CSS: Making Webpages
Khan Academy's introduction to web development. Learn HTML tags, CSS styling, web page structure, and how browsers render content. Ideal for absolute beginners.
HTML & CSSBeginner
Foundations: HTML and CSS
The Odin Project's HTML & CSS foundation covers everything from basic tags to flexbox layouts. Includes real projects, a curated reading list, and community support.
HTML & CSSBeginner
CSS Styling Basics
Mozilla's official free CSS curriculum from the Learn Web Development section. Covers CSS syntax, selectors, the box model, color, typography, flexbox, grid, responsive design, and troubleshooting. Taught through structured reading with inline code examples, making it ideal for learners who prefer documentation-style, reference-based learning over traditional video instruction. No certificate on completion, no projects, and requires basic HTML knowledge from a prior course.
15hDetails →
ScrimbaCertificate
HTML & CSSBeginner
Learn HTML and CSS
Scrimba's interactive HTML and CSS course with 5.7 hours of content. You edit code directly inside paused video lessons, seeing results in real time. Covers HTML structure, semantic elements, CSS selectors, the box model, layout (flexbox and grid), forms, typography, and responsive design. Includes 5 complete projects, 75+ interactive coding challenges, and awards a free certificate on completion. Uniquely suited for hands-on learners who learn best by writing code alongside video instruction.
5.7hDetails →
HTML & CSSBeginner
Learn HTML: Fundamentals
Codecademy's free interactive lessons on HTML fundamentals. Learn semantic HTML elements, attributes, structure, forms, accessibility basics, and how browsers parse and render markup. The free tier includes interactive, in-browser coding exercises with immediate feedback, making it ideal for absolute beginners. Note: full projects and career paths unlock with a Pro subscription; the free tier is lessons and exercises only, not a complete project-based path.
Self-pacedDetails →
HTML & CSSIntermediate
Web Fundamentals (Google Developers)
Google's official guide to modern web development best practices. Covers responsive design, HTML/CSS fundamentals, web performance, accessibility, progressive web apps, CSS layout techniques (flexbox and grid), and visual design. Includes free, hands-on codelabs and runnable code examples. Written by Google engineers and updated regularly. Ideal as a reference while building projects, or as a structured learning path through web-development foundations.
HTML & CSSIntermediate
CSS Animations and Transitions (Google Developers)
Google's guide to building smooth, performant CSS animations and transitions. Covers keyframes, easing functions, transforms, the will-change property, timing models, GPU acceleration, and performance best practices. Includes live interactive examples and explainers written by Google engineers. Intermediate level: it assumes a solid CSS foundation, so learn selectors and the box model somewhere else first. Best used as a reference while you build your own animation-heavy project, not as a standalone course.