HTML, CSS, and JavaScript courses can help you learn web page structure, styling, and interactivity, along with responsive design and accessibility practices. You can build skills in creating layouts, implementing animations, and optimizing user experiences across different devices. Many courses introduce tools like code editors, version control systems, and browser developer tools, that support testing and refining your projects. By mastering these skills and tools, you’ll be well-equipped to develop engaging websites and applications.

University of California, Davis
Skills you'll gain: jQuery, Javascript and jQuery, UI Components, Scripting, JavaScript Frameworks, Web Applications, HTML and CSS, Javascript, Web Development Tools, Animations, User Interface (UI) Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Figma (Design Software), Front-End Web Development, User Interface (UI), Responsive Web Design, Web Design and Development, Mockups, Web Design, Web Content Accessibility Guidelines, Prototyping, Javascript, Web Development
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design, Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Webpack, Search Engine Optimization, Web Development Tools, Web Analytics and SEO, Performance Tuning, Build Tools, Debugging, Front-End Web Development, Test Automation, Development Testing, Performance Testing, Software Development Tools, WordPress, Javascript
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: jQuery, Javascript, Web Applications, Data Structures
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, HTML and CSS, Front-End Web Development, Web Development Tools, Bootstrap (Front-End Framework), React.js, Web Development, Javascript, JavaScript Frameworks, Semantic Web
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML), Web Design, Semantic Web
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Javascript, User Interface (UI), Web Development, Web Development Tools, Scripting, Hypertext Markup Language (HTML)
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Javascript, Web Applications, HTML and CSS, Animations, Hypertext Markup Language (HTML), Event-Driven Programming, Web Design and Development, UI Components, Object Oriented Programming (OOP), Data Structures
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Web Development, Web Applications, Web Design and Development, Web Design, Front-End Web Development
Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), Web Development, Web Applications, Web Design and Development, Web Development Tools, Web Design, Web Content
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Browser Compatibility, Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Web Design, Extensible Markup Language (XML), Style Guides, Maintainability
Mixed · Course · 1 - 4 Weeks