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.

Skills you'll gain: LESS, Cascading Style Sheets (CSS), HTML and CSS, Code Reusability, Maintainability, Scalability
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Semantic Web, Web Content, Web Design, Web Development, Front-End Web Development
Beginner · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Ajax, Javascript, Object Oriented Programming (OOP), JavaScript Frameworks, Frontend Integration, Application Programming Interface (API), JSON, Front-End Web Development, Web Development, Full-Stack Web Development, Web Applications, Frontend Performance, Web Development Tools, Object Oriented Design, Application Development, Build Tools, Program Development, Code Reusability, Debugging, Development Environment
Beginner · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Django (Web Framework), Dashboard Creation, Model View Controller, Authentications, Chart.js, Data Import/Export, Full-Stack Web Development, Web Development, Data Modeling, Object-Relational Mapping, Cascading Style Sheets (CSS), Responsive Web Design, Javascript, Code Reusability, User Interface (UI), Development Environment, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Software Design Patterns, Object Oriented Design, Object Oriented Programming (OOP), Javascript, Software Design, Maintainability, Application Development, Event-Driven Programming, Prototyping, Context Management
Advanced · Course · 1 - 3 Months

Skills you'll gain: Hypertext Markup Language (HTML), Application Programming Interface (API), Application Development, Computer Graphics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Algorithms, Javascript, Data Structures, Theoretical Computer Science, Computational Thinking, Programming Principles, Performance Tuning, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vue.JS, JavaScript Frameworks, Web Development Tools, Front-End Web Development, Event-Driven Programming, Javascript, UI Components, Development Environment, Hypertext Markup Language (HTML)
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: TypeScript, Event-Driven Programming, Javascript, JavaScript Frameworks, Pseudocode, Computational Thinking, JSON, Program Development, Web Development, Angular, Web Applications, Vue.JS, Data Import/Export, Application Development, Mobile Development, Debugging, Algorithms, Code Reusability, Node.JS, React.js
Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Responsive Web Design, Git (Version Control System), Web Development, Cascading Style Sheets (CSS), Data Persistence, React.js, Version Control, Performance Tuning, Full-Stack Web Development, GitHub, Event-Driven Programming, HTML and CSS, Application Design, Development Testing, Video Game Development, Software Design Documents, Game Design, Program Development, Software Testing, Javascript
Beginner · Professional Certificate · 3 - 6 Months