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 London
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Human Computer Interaction, Interaction Design, Web Design and Development, Bootstrap (Front-End Framework), Usability, User Interface and User Experience (UI/UX) Design, Wireframing, Cascading Style Sheets (CSS), Data Structures, Web Components, Javascript
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, HTML and CSS, JavaScript Frameworks, Application Frameworks, Javascript, Hypertext Markup Language (HTML), Front-End Web Development, Scalability, Web Applications, Cascading Style Sheets (CSS), Web Development, Software Design, UI Components
Intermediate · Course · 1 - 4 Weeks
Universidad Austral
Skills you'll gain: Responsive Web Design, LESS, Bootstrap (Front-End Framework), Version Control, HTML and CSS, Web Design and Development, Web Development Tools, Cascading Style Sheets (CSS), Front-End Web Development, JavaScript Frameworks, Web Components, Javascript and jQuery, Application Deployment, Node.JS, Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Django (Web Framework), Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Back-End Web Development, Relational Databases, Object Oriented Programming (OOP), Database Management Systems, Bootstrap (Front-End Framework), SQL, Database Design, Databases, Front-End Web Development, Database Administration, Unit Testing, MySQL, Web Development, Computer Programming, Pseudocode, Communication
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: HTML and CSS, Responsive Web Design, Web Design, User Experience Design, Usability, User Centered Design, User Interface (UI) Design, Persona (User Experience), Adobe Photoshop, Figma (Design Software)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Bootstrap (Front-End Framework), Web Design and Development, HTML and CSS, User Interface (UI), Front-End Web Development, Responsive Web Design, JavaScript Frameworks, Hypertext Markup Language (HTML), Full-Stack Web Development, Cascading Style Sheets (CSS), General Networking, Back-End Web Development, React.js, Web Servers
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Version Control, Hypertext Markup Language (HTML), GitHub, Git (Version Control System), HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Web Development, Web Design, Image Quality, Web Content, Front-End Web Development, Web Servers, Semantic Web, Cloud Hosting
Beginner · Course · 1 - 4 Weeks
Stanford University
Skills you'll gain: Mathematical Theory & Analysis, Mathematics and Mathematical Modeling, Calculus, Deductive Reasoning, Logical Reasoning
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Vue.JS, Web Development Tools, Web Applications, Front-End Web Development, HTML and CSS, Javascript, Microsoft Visual Studio
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Bootstrap (Front-End Framework), Software Development Life Cycle, Cloud-Native Computing, Software Architecture, Browser Compatibility, User Centered Design, React Redux, CI/CD, Cloud Applications, Responsive Web Design, Cloud Development, NoSQL, Git (Version Control System), GitHub, Webpack, Application Development, MongoDB, HTML and CSS, Hypertext Markup Language (HTML), Engineering Software
Beginner · Professional Certificate · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design and Development, Web Applications, Browser Compatibility, User Experience Design, Requirements Analysis, Client Services, Javascript
Mixed · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Fundraising and Crowdsourcing, Music Theory, Musical Composition, Music, Peer Review, Brand Strategy, Professional Networking, Social Media, Branding, Sustainable Business, Music Performance, Leadership, Media Production, Campaign Management, Instrumental Music, Automation, Marketing, Relationship Building, Entrepreneurship, File Management
Beginner · Specialization · 3 - 6 Months