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 Washington
Skills you'll gain: Responsive Web Design, Web Design, GitHub, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, Web Design and Development, Usability, User Interface and User Experience (UI/UX) Design, User Experience, Javascript, Web Content Accessibility Guidelines, Browser Compatibility, User Story, Front-End Web Development, Web Development, Mobile Development, Semantic Web, Git (Version Control System)
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Bioinformatics, Data Science, Molecular Biology, Data Analysis, Computer Science, Statistical Analysis, Computational Thinking, Biostatistics, Statistics, Software Engineering, Algorithms, Biology
Mixed · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, Database Design, LLM Application, Software Documentation, Software Design Patterns, Collaborative Software, Software Testing, OpenAI API, Application Design, Generative AI, Database Management, AI Enablement, Code Review, Software Architecture, System Design and Implementation, Dependency Analysis, Software Engineering, Software Development, Machine Learning
Beginner · Professional Certificate · 1 - 3 Months

Skills you'll gain: Search Engine Optimization, Web Analytics and SEO, Keyword Research, Performance Measurement, Technical Consulting, Performance Analysis, Content Management Systems, Digital Marketing, Auditing, Performance Reporting, Data-Driven Decision-Making, Web Content Accessibility Guidelines
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Business Writing, Business Correspondence, Business Communication, Writing, Organizational Skills, Concision, Writing and Editing, Proofreading, Grammar, Communication, Editing, Organizational Strategy, Persuasive Communication, Verbal Communication Skills, Communication Strategies
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Data Pipelines, Apache Kafka, Operational Databases, Continuous Monitoring, Real Time Data, Data Integrity, Data Warehousing, Data Modeling, Software Versioning, Continuous Integration, Data Validation, Automation, Warehouse Management, Automation Engineering
Intermediate · Course · 1 - 4 Weeks

Starweaver
Beginner · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Data Storytelling, Business Metrics, Key Performance Indicators (KPIs), Data Management, Data Collection, Data Governance, Bayesian Statistics, Data Visualization, Descriptive Statistics, Statistical Hypothesis Testing, Information Privacy, Data Cleansing, Pandas (Python Package), Data Quality, Data Analysis, Data Visualization Software, Spreadsheet Software, Exploratory Data Analysis, SQL, Python Programming
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Labor Compliance, Industrial Engineering, Manufacturing and Production, Production Process, Team Management, Manufacturing Processes, Communication Strategies, Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Management, Key Performance Indicators (KPIs), Business Metrics, Performance Measurement, Content Development and Management
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Semiconductors, Electronics, Reliability, Electronic Components, Electronic Systems, Computer Hardware, Thermal Management, Engineering Design Process, Mechanical Design, Technology Roadmaps, Electrical Systems, Manufacturing Processes
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Emotional Intelligence, Stakeholder Management, Executive Presence, Professional Development, Leadership and Management, Business Leadership, Technical Management, Personal Development, AI Enablement, Operational Excellence, Business Communication, Strategic Thinking, Generative AI, Communication, Value Propositions, Risk Management, Cloud Computing, Machine Learning
Intermediate · Course · 1 - 4 Weeks