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.

National Academy of Sports Medicine
Skills you'll gain: Exercise Science, Nutrition and Diet, Nutritional Assessment, Sports Medicine, Nutrition Education, Physiology, Kinesiology, Endocrinology, Health And Wellness Coaching, Vital Signs, Stress Management, Biochemistry, Systems Of Measurement, Biology
Intermediate · Specialization · 1 - 4 Weeks

Tsinghua University
Skills you'll gain: Blended Learning, Digital pedagogy, Education Software and Technology, Innovation, Emerging Technologies
Beginner · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: Bayesian Statistics, Statistical Modeling, Statistical Methods, Model Evaluation, Markov Model, Statistical Analysis, Regression Analysis, R Programming, Data Analysis, Probability Distribution
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Bootstrap (Front-End Framework), Browser Compatibility, Responsive Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, UI Components, React.js, Web Applications, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, User Accounts, Unix Commands, Unix, Bash (Scripting Language), Command-Line Interface, Kubernetes, Git (Version Control System), GitHub, OS Process Management, Firewall, Ubuntu, Docker (Software), Containerization, Network Monitoring, Unix Shell, File Systems, Shell Script, TCP/IP, Version Control
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Remote Access Systems, Network Troubleshooting, Network Administration, Virtual Private Networks (VPN), Hardening, TCP/IP, Cybersecurity, Dynamic Host Configuration Protocol (DHCP), Human Factors (Security), Technical Support and Services, Encryption, Command-Line Interface, Authentications, Wireless Networks
Advanced · Course · 1 - 4 Weeks

Harvard Business Review
Skills you'll gain: Team Performance Management, Teamwork, Team Building, Team Management, Virtual Teams, Collaboration, Intercultural Competence, Team Leadership, Conflict Management, Cross-Functional Collaboration, Team Motivation, Productivity, Cultural Diversity, Cultural Sensitivity, Cultural Responsiveness, Meeting Facilitation, Drive Engagement, Safety Culture, Communication Strategies
Intermediate · Course · 1 - 4 Weeks

University of Lausanne
Skills you'll gain: Laboratory Testing, Analytical Testing, Biochemistry, Legal Proceedings, Pharmacology, Sports Medicine, Culture, Social Sciences, Sociology, Social Determinants Of Health, Law, Regulation, and Compliance, Ethical Standards And Conduct
Mixed · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Design Elements And Principles, Graphic and Visual Design, Visual Design, Design, Media and Communications, Color Theory, Art History, Typography, Creativity, Psychology
Intermediate · Course · 1 - 4 Weeks

Lund University
Skills you'll gain: Climate Change Adaptation, Sustainable Development, Sustainable Design, Governance, Water Sustainability, Sustainable Technologies, Environment, Systems Thinking, Environmental Science, Climate Change Mitigation, Case Studies, Water Resources, Business Modeling, Stakeholder Engagement
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Business Writing, Presentations, Peer Review, Graphic Design, Graphic and Visual Design, Business Correspondence, Public Speaking, Business Communication, Graphic and Visual Design Software, Verbal Communication Skills, Design, Visual Design, Storytelling, Writing, Organizational Skills, Project Design, Concision, Layout Design, Writing and Editing, Proofreading
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Service Management, Information Technology Infrastructure Library, IT Service Management, Systems Integration, Control Objectives for Information and Related Technology (COBIT), Supplier Relationship Management, Strategic Sourcing, Risk Management Framework, Governance, Process Management, Process Improvement and Optimization, Risk Management, Continuous Improvement Process, Organizational Change, Performance Measurement, Lean Methodologies
Beginner · Course · 1 - 3 Months