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 Minnesota
Skills you'll gain: Semiconductors, Finite Element Methods, Medical Devices, Materials science, Electronics Engineering, Laboratory Testing, Electronics, Quality Assurance, Process Control, Biomedical Engineering, Electronic Systems, Product Testing, Manufacturing Processes, Electrical Engineering, Electronic Components, Computer Architecture, Process Engineering, Mechanical Engineering, Emerging Technologies, Simulation and Simulation Software
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Team Leadership, Motivational Skills, Collaboration, Productivity, Employee Engagement, Overcoming Obstacles
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Security Assessment, Security Testing, Vulnerability Assessments, Penetration Testing, Vulnerability Scanning, Threat Modeling, Vulnerability Management, Security Strategy, Security Controls, Security Requirements Analysis, White-Box Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptographic Protocols, Blockchain, Business Continuity, Cryptography, Disaster Recovery, Vulnerability Assessments, Enterprise Security, Regulation and Legal Compliance, Data Security, Application Frameworks, Cybersecurity, Emerging Technologies, Distributed Computing, Transaction Processing
Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Electrical Systems, Building Codes, Electrical Wiring, Construction Inspection, HVAC, Building Design, Basic Electrical Systems, Electrical Power, Engineering Calculations, Architectural Design, System Requirements, Electrical Safety, Mechanical Design, Energy and Utilities, Architectural Engineering, Land Development, Semiconductors, Cost Benefit Analysis, Design Reviews, Submittals (Construction)
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Storage, OSI Models, General Networking, Wireless Networks, Data Storage Technologies, Local Area Networks, Networking Hardware, Computer Networking, Network Architecture, Network Infrastructure, TCP/IP, Network Protocols, Microsoft Windows, Network Troubleshooting, Network Security, System Configuration, Wide Area Networks, Hardware Architecture, Command-Line Interface
Beginner · Course · 1 - 3 Months

Niel Asher Education
Skills you'll gain: Verification And Validation, Lifting Ability, Injury Prevention, Exercise Science, Train The Trainer, Physical Stamina, Safety Standards, Mobility Assistance, Neurology, Mechanics, Planning
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Crisis Management, Systems Thinking, Leadership, Strategic Communication, Threat Management, Climate Change Adaptation, Resilience, Change Management, Threat Detection, Infrastructure Security, Business Continuity, Disaster Recovery, Organizational Change, Engineering Management, Emergency Response, Business Ethics, Communication, Risk Analysis, Systems Engineering, Sustainable Development
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Linux Administration, Linux, Linux Servers, Operating System Administration, User Accounts, Linux Commands, User Provisioning, Systems Administration, System Configuration, Hardening, Security Controls, Authorization (Computing), Computer Security, Network Administration, Authentications
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Nutritional Assessment, Nutrition and Diet, Social Determinants Of Health, Health Assessment, Environment, Sustainability Standards, Spreadsheet Software, Environment and Resource Management, Environmental Science, Risk Analysis, Critical Thinking and Problem Solving
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Threat Modeling, Network Security, Cybersecurity, Threat Management, Cloud Security, Malware Protection, Cyber Attacks, Threat Detection, Hardening, Application Security, Information Systems Security, Intrusion Detection and Prevention, Disaster Recovery, Security Controls, Remote Access Systems, Systems Architecture, Data Security, Information Assurance, Encryption
Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Mindfulness, Self-Awareness, Mental Health, Mental Concentration, Stress Management, Personal Development, Resilience, Cognitive flexibility, Persistence, Overcoming Obstacles, Patience, Emotional Intelligence
Beginner · Course · 1 - 3 Months