A typical syllabus for an HTML, CSS, and JavaScript course covers the foundational elements of front-end web development. The curriculum generally progresses from structuring content to styling it and finally adding interactivity.

HTML (HyperText Markup Language):

• Introduction to HTML: History, basic structure of an HTML document, elements, tags, attributes.
• Text Formatting: Headings, paragraphs, line breaks, bold, italic, and other formatting tags.
• Lists and Tables: Ordered lists, unordered lists, definition lists, creating and styling tables.
• Hyperlinks and Images: Creating links, embedding images, image maps.
• Forms: Creating input fields, buttons, dropdowns, form attributes and validation.
• Semantic HTML5: Understanding and using semantic elements like <header>, <nav>, <main>, <footer>, <article>, <section>.

CSS (Cascading Style Sheets):

• Introduction to CSS: Syntax, different ways to include CSS (inline, internal, external).
• Selectors: Type selectors, class selectors, ID selectors, attribute selectors, pseudo-classes, pseudo-elements.
• Styling Properties: Colors, backgrounds, fonts, text formatting, borders, padding, margins (Box Model).
• Layout and Positioning: Display properties (block, inline, inline-block), float, position (static, relative, absolute, fixed, sticky), flexbox, grid.
• Responsive Web Design: Media queries, viewport settings, creating adaptable layouts for different screen sizes.
• Transitions and Animations: Adding visual effects and interactivity.

JavaScript:

• Introduction to JavaScript: History, variables, data types, operators, control flow (conditionals, loops).
• Functions: Defining and calling functions, parameters, return values, arrow functions.
• Arrays and Objects: Working with data structures, array methods, object properties and methods.
• DOM Manipulation: Accessing and modifying HTML elements, handling events (clicks, key presses, form submissions).
• Asynchronous JavaScript: Introduction to promises, async/await (for handling operations like data fetching).
• Error Handling: Try-catch blocks.
• Introduction to Web APIs (Optional): Fetch API, Local Storage, Geolocation API.

Project Work:

• Throughout the course, practical exercises and projects are typically assigned to apply learned concepts. This culminates in building a complete, responsive website or web application.