Fundamentals

1- Semantic HTML5 Elements and Document Structure 2- Forms, Inputs, and Validation Attributes 3- Tables, Multimedia Embedding, and Accessibility Basics 4- HTML5 APIs (Canvas, Geolocation, Drag-and-Drop) 5- SEO Optimization with Meta Tags and Structured Data 6- Performance Optimization 7- Box Model, Positioning, and Typography Fundamentals 8- Pseudo-Classes, Pseudo-Elements, and Attribute Selectors 9- CSS Custom Properties (Variables) and Inheritance 10- Flexbox for One-Dimensional Layouts 11- CSS Grid for Two-Dimensional Layouts 12- Responsive Design with Media Queries and Container Queries 13- Transitions, Transforms, and Keyframe Animations 14- Filters, Blend Modes, and Backdrop Effects 15- CSS Preprocessors Integration 16- Variables, Data Types, Operators, and Control Structures 17- Filters, Blend Modes, and Backdrop Effects 18- Arrays and Objects 19- DOM Traversal 20- Event Handling 21- Form Handling 22- Modules , Promises/Async-Await, Fetch API for AJAX 23- Closures, Prototypes, Classes 24- Error Handling (try/catch), Optional Chaining (?.), and Nullish Coalescing (??) 25- Local Storage and State Management Patterns 26- Working with APIs 27- Working with APIs and Performance Tools (Debounce/Throttle, requestAnimationFrame) 28- Building a Responsive Portfolio Site with HTML/CSS/JS 29- Code Quality , Debugging 30- Deployment and Browser Quality 31- Fundamentals