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.

Johns Hopkins University
Skills you'll gain: Statistical Hypothesis Testing, Sampling (Statistics), Regression Analysis, Bayesian Statistics, Statistical Analysis, Probability & Statistics, Statistical Inference, Statistical Methods, Statistical Modeling, Linear Algebra, Probability, Probability Distribution, R Programming, Biostatistics, Data Science, Statistics, Mathematical Modeling, Data Analysis, Data Modeling, Applied Mathematics
Advanced · Specialization · 3 - 6 Months

California Institute of the Arts
Skills you'll gain: Graphic Design, Graphic and Visual Design, Art History, Design, Logo Design, Design Strategies, Visual Design, Typography, Branding, Design Elements And Principles, Advertising, Aesthetics, Brand Marketing, Creativity, Culture
Beginner · Course · 1 - 4 Weeks

Wesleyan University
Skills you'll gain: Ancient History, European History, World History, Art History, Political Sciences, Anthropology, Cultural Sensitivity, Governance, Scientific Methods
Mixed · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Power Electronics, Control Systems, USB, Electronic Systems, Simulations, Engineering Documentation, Semiconductors, Electrical Engineering, Engineering Design Process, Electrical Systems, Electronic Components, Electrical Power, Hardware Design, Electronics, Technical Communication, Electronics Engineering, electromagnetics, Electric Power Systems, Simulation and Simulation Software, Design Specifications
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Berklee
Skills you'll gain: Music, Musical Composition, Performing Arts
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Git (Version Control System), GitHub, Version Control, Infrastructure as Code (IaC), Debugging, Bash (Scripting Language), Test Automation, Puppet (Configuration Management Tool), Infrastructure As A Service (IaaS), Cloud Services, Technical Communication, Web Services, Email Automation, Automation, Python Programming, Interviewing Skills, Applicant Tracking Systems, Configuration Management, Program Development, Programming Principles
Advanced · Professional Certificate · 3 - 6 Months

University of Michigan
Skills you'll gain: Mechanical Engineering, Thermal Management, Engineering, Energy and Utilities, Physics, Engineering Analysis, Systems Of Measurement, Physical Science, Process Analysis, Environmental Issue
Beginner · Course · 1 - 3 Months
Georgia Institute of Technology
Skills you'll gain: Engineering Analysis, Mechanics, Torque (Physics), Engineering Calculations, Mechanical Engineering, Engineering, Civil Engineering, Structural Analysis, Applied Mathematics, Trigonometry
Mixed · Course · 1 - 3 Months

Stanford University
Skills you'll gain: Logical Reasoning, Computational Logic, Deductive Reasoning, Computational Thinking, Problem Solving, Business Logic, Complex Problem Solving, Decision Making
Intermediate · Course · 1 - 3 Months

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

University at Buffalo
Skills you'll gain: Personal protective equipment, Electrical Substation, Electrical Power, Electric Power Systems, Electrical Systems, Environmental Regulations, Energy and Utilities, Basic Electrical Systems, Oil and Gas, Safety Training, Electrical Equipment, Occupational Safety and Health Administration (OSHA), Hazard Analysis, Workforce Development, Billing, Sustainable Development, Safety Standards, Sustainable Technologies, Supply Chain, Regulatory Affairs
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: React.js, Debugging, Web Design and Development, Front-End Web Development, Web Development, JavaScript Frameworks, HTML and CSS, UI Components, Javascript
Intermediate · Guided Project · Less Than 2 Hours