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.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Digital Signal Processing, Digital Communications, Communication Systems, Image Analysis, Telecommunications, Electrical and Computer Engineering, Electrical Engineering, Embedded Systems, Electronic Systems, Engineering Analysis, Electronics, Programming Principles, Numerical Analysis, Algorithms, Linear Algebra, Systems Of Measurement, Mathematical Modeling, Time Series Analysis and Forecasting, Jupyter, Data Mapping
Intermediate · Specialization · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Scientific Methods, Science and Research, Research, Experimentation, Research Methodologies, Research Design, Data Collection, Peer Review, Simulations, Ethical Standards And Conduct
Intermediate · Course · 1 - 4 Weeks

University of Florida
Skills you'll gain: Land Management, Water Quality, Water Resource Management, Hydrology, Environment and Resource Management, Environmental Regulations, Sustainable Development, Sustainability Standards, Environmental Science
Beginner · Course · 1 - 3 Months

West Virginia University
Skills you'll gain: Sustainable Development, Economics, Environment and Resource Management, Environmental Resource Management, Natural Resource Management, Supply And Demand, Environmental Science, Product Knowledge, Materials science, Climate Change Mitigation, Sustainable Engineering, Construction
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Responsive Web Design, AI Personalization, Web Analytics and SEO, HTML and CSS, Web Content, Application Security, Web Servers, Cloud Hosting, Control Panels
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Electrical Engineering, electromagnetics, Performance Tuning, Image Quality, Engineering, Scientific, and Technical Instruments, Simulation and Simulation Software, Engineering Calculations, Design Software, Image Analysis, Engineering Analysis, Computer-Aided Design, Engineering Design Process, Numerical Analysis, Electronic Components, System Design and Implementation, Systems Design, Human Factors, Applied Mathematics, Physics, System Configuration
Build toward a degree
Advanced · Specialization · 3 - 6 Months

Tel Aviv University
Skills you'll gain: World History, European History, Social Studies, International Relations, Political Sciences, Public Safety and National Security, Demography, Cultural Diversity
Beginner · Course · 1 - 4 Weeks

University of Cambridge
Skills you'll gain: Cash Flow Forecasting, Financial Reporting, Cash Flows, Finance, Financial Management, Financial Acumen, Financial Statements, Risk Management, Return On Investment, Business Risk Management, Business Ethics, Stakeholder Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Music, Media Production, Creativity, Digital Signal Processing, Editing, File Management, System Configuration
Beginner · Course · 1 - 3 Months

Yale University
Skills you'll gain: Liberal Arts, Environment, Culture, Biology, Creativity, Anthropology, Systems Thinking, Social Studies, Timelines, Environmental Science, Physics, Scientific Methods
Mixed · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Front-End Web Development, Git (Version Control System), Web Content Accessibility Guidelines, User Interface and User Experience (UI/UX) Design, HTML and CSS, React.js, Usability, Software Technical Review, Web Applications, User Experience Design, Semantic Web, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

University of California, Santa Cruz
Skills you'll gain: Responsible AI, Data Ethics, Artificial Intelligence, Artificial Neural Networks, Ethical Standards And Conduct, Network Model, Machine Learning, Empathy & Emotional Intelligence, Supervised Learning, Reinforcement Learning, Policy Development
Beginner · Course · 1 - 4 Weeks