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.

Universidad Nacional de Colombia
Skills you'll gain: Engineering Practices, Electronics, Automation, Water Resource Management, Engineering, Control Systems, Electronic Systems, Embedded Systems, Sustainable Technologies, Electronic Components, Computer Programming Tools, Environmental Monitoring, Electrical Wiring, Construction, Basic Electrical Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SQL, Peer Review, Jupyter, Data Literacy, Data Mining, Data Modeling, Data Collection, Business Analysis, Relational Databases, Stored Procedure, Databases, Data Science, Big Data, Computer Programming Tools, Query Languages, Data Visualization Software, Decision Tree Learning, Predictive Modeling, Cloud Computing, Python Programming
Build toward a degree
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Bayesian Network, Linear Algebra, Numerical Analysis, Mathematical Modeling, Estimation, Matlab, Statistical Modeling, Advanced Mathematics, Simulations, Time Series Analysis and Forecasting, Global Positioning Systems, Simulation and Simulation Software, Probability & Statistics, System Implementation, Systems Of Measurement, Applied Mathematics, Statistical Methods, Differential Equations, Predictive Analytics, Control Systems
Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Web Scraping, Extensible Markup Language (XML), Scripting, HTML and CSS, Web Development, Unstructured Data, Web Applications, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

ISAE-SUPAERO
Skills you'll gain: New Product Development, Emerging Technologies, Innovation, Sustainable Engineering, Sustainable Technologies, Engineering, Strategic Partnership, Chemical Engineering, Mechanical Engineering, Cost Reduction, Physics
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Canva (Software), Graphical Tools, Web Content, Design, Creative Design, Design Software, Graphic Design, Marketing Design, Event Management
Beginner · Guided Project · Less Than 2 Hours
École Polytechnique
Skills you'll gain: Semiconductors, Materials science, Energy and Utilities, Electrical Systems, Sustainable Technologies, Electronic Systems, Chemistry, Physics
Advanced · Course · 1 - 4 Weeks
Curtis Institute of Music
Skills you'll gain: Classical Music, Music, Music Theory, Music History, Music Performance
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Structural Analysis, Construction, Structural Engineering, Architectural Engineering, Civil Engineering, Materials science, Engineering Analysis, Engineering Calculations, Safety Assurance, Mechanics, Physics
Beginner · Course · 1 - 3 Months

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Control Systems, Engineering Analysis, Matlab, Engineering Calculations, Systems Analysis, Simulation and Simulation Software, Mathematical Modeling, Linear Algebra, Differential Equations, System Design and Implementation
Intermediate · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Structural Engineering, Construction Engineering, Construction, Engineering Management, Equipment Design, Construction Management, Engineering Practices, Hydraulics, Architecture and Construction, Mechanics, Safety Standards, Engineering, Mechanical Design, Engineering Calculations, Civil Engineering, Structural Analysis, Mechanical Engineering, Hazard Analysis, Construction Inspection, Engineering Analysis
Advanced · Specialization · 3 - 6 Months

Codio
Skills you'll gain: Model View Controller, Test Driven Development (TDD), Restful API, Vue.JS, Full-Stack Web Development, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Software Design Patterns, Javascript, HTML and CSS, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks