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.

Scrimba
Skills you'll gain: Debugging, HTML and CSS, Web Development, Mobile Development, Database Application, Responsive Web Design, Real Time Data, User Interface (UI) Design, Secure Coding, Javascript, Data Storage Technologies
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Tableau Software, Data Visualization Software, Data Storytelling, Data Analysis, Report Writing, Spreadsheet Software, Data Visualization, Dashboard, Trend Analysis, Interactive Data Visualization, Data Presentation, Microsoft Excel, Statistical Analysis, Predictive Analytics, Data Transformation, Microsoft Office, Microsoft PowerPoint, Productivity Software, Forecasting, Data Management
Beginner · Specialization · 3 - 6 Months

Knowledge Accelerators
Skills you'll gain: Power BI, Data Presentation, Microsoft Excel, Dashboard, Excel Formulas, Data Modeling, Business Reporting, Data Entry, Data Analysis, Data Storytelling, Data-Driven Decision-Making, Business Analytics, Analytics, Business Modeling, Data Processing, Business Analysis, Data Cleansing, Data Synthesis, Trend Analysis, Data Management
Beginner · Specialization · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Differential Equations, Engineering Analysis, Mechanics, Applied Mathematics, Calculus, Linear Algebra, Mathematical Modeling, Physics, Geometry, Vibrations, Derivatives
Mixed · Course · 1 - 3 Months

Skills you'll gain: Specialized Accounting, Accounting Records, Cost Estimation
Beginner · Course · 1 - 4 Weeks

Universitat de Barcelona
Skills you'll gain: World History, Culture, International Relations, Art History, Social Sciences, Economics, European History, Cultural Diversity, Sociology, Political Sciences
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Business Intelligence, Power BI, Financial Reporting, Business Reporting, Data Presentation, Data Visualization Software, Dashboard, Microsoft Excel, Interactive Data Visualization, Data Cleansing, Data Import/Export, Data Sharing, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Target Audience, Prioritization, Goal Setting, Business Planning, Smart Goals, Business Priorities, Business Strategy, Marketing Strategies, Entrepreneurship, Marketing Channel, Revenue Management, Decision Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Go (Programming Language), Data Structures, Programming Principles, Context Management, Distributed Computing, Development Environment, Program Development, Maintainability, File Management
Beginner · Course · 1 - 3 Months

Emory University
Skills you'll gain: Pharmacology, Substance Abuse, Mental and Behavioral Health, Social Studies, Neurology, Behavioral Health, Vulnerability, Health Policy, Public Health, Case Studies
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Surveys, Survey Creation, User Feedback, Case Studies, Data Quality, Research Design, User Research, Data Collection, Qualitative Research, Sampling (Statistics)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Feature Engineering, Data Preprocessing, Financial Data, Predictive Modeling, Customer Demand Planning, Data-Driven Decision-Making, Exploratory Data Analysis, R Programming, Customer Analysis, Predictive Analytics, Profit and Loss (P&L) Management, Risk Modeling, Inventory Management System, Analytics, Advanced Analytics, Supply Chain Management, Business Analytics, Machine Learning, Business
Beginner · Specialization · 1 - 3 Months