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.

LearnQuest
Skills you'll gain: Angular, JavaScript Frameworks, Web Components, Application Deployment, Cascading Style Sheets (CSS), TypeScript, Application Frameworks, UI Components, Web Development Tools, Frontend Performance, Data Transformation, Application Design, Server Side, Front-End Web Development, Hypertext Markup Language (HTML), Web Services, Web Applications, Network Routing, Software Architecture, Model View Controller
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Interviewing Skills, Recruitment, Oral Expression, Follow Through, Communication, Business Writing
Beginner · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: Loans, Lending and Underwriting, FinTech, Payment Systems, Key Management, Cryptography, Digital Assets, Market Liquidity, Financial Trading, Transaction Processing, Public Key Infrastructure, Encryption, Asset Protection, Governance
Intermediate · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: Internal Communications, Communication Planning, Crisis Management, Corporate Communications, Strategic Communication, Cultural Sensitivity, Communication Strategies, Telecommuting, Branding, Business Ethics, Brand Management, Employee Engagement, Virtual Teams
Beginner · Course · 1 - 3 Months

Imperial College London
Skills you'll gain: Tensorflow, Keras (Neural Network Library), Model Evaluation, Deep Learning, Image Analysis, Convolutional Neural Networks, Transfer Learning, Supervised Learning, Computer Vision, Model Deployment, Artificial Neural Networks, Data Preprocessing
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Demography, Occupational Health, Environmental Regulations, Social Justice, Environmental Issue, Public Health, Health Equity, Environment, Environmental Laws, Environmental Policy, Health Systems, Sustainable Development, Health Disparities, Systems Thinking, Environment Health And Safety, Occupational Safety and Health Administration (OSHA), Social Determinants Of Health, Climate Change Mitigation, Environmental Science, Epidemiology
Beginner · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Network Monitoring, Virtual Networking, Google Cloud Platform, Network Infrastructure, Virtual Private Networks (VPN), Network Troubleshooting, Virtual Machines, Load Balancing, Network Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Flask (Web Framework), Application Deployment, Web Applications, Hypertext Markup Language (HTML), Application Development, Web Development, HTML and CSS, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Microsoft Office
Beginner · Guided Project · Less Than 2 Hours

Peking University
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, Programming Principles, C (Programming Language), Algorithms, Data Structures, Software Design, Maintainability
Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, LinkedIn, Web Development, Javascript, Professional Development, GitHub
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Jira (Software), Sprint Planning, Backlogs, Scrum (Software Development), User Story, Agile Methodology, Agile Project Management, Workflow Management, Run Chart, Project Planning, Project Management, Prioritization, Dependency Analysis
Beginner · Guided Project · Less Than 2 Hours