Write semantic HTML that is easier to maintain and use
Build page structure that browsers, search engines, and assistive technology can understand
Read tutorial →Web Development
Build for the modern web.
Learn front-end and back-end web development through real projects using HTML, CSS, JavaScript, PHP, APIs, and production workflows.
Start here
What this section will teach you.
The focus is on building complete, understandable websites and tools. Each concept is connected to something you can see in the browser or deploy on a real server.
01
Write semantic HTML that is accessible and maintainable
02
Build responsive layouts with modern CSS
03
Use JavaScript for purposeful interactivity
04
Handle forms and server-side logic with PHP
05
Work with databases safely
06
Consume and build APIs
07
Optimize performance for mobile devices
08
Deploy applications to a production server
Learning path
Follow the ideas in order.
You can jump directly to the subject you need, or work through the path from left to right.
01HTMLOpen lesson → 02Modern CSSOpen lesson → 03JavaScriptOpen lesson → 04PHPOpen lesson → 05DatabasesOpen lesson →
06APIs
07Performance
08Deployment
Published guides
Tutorials & projects
New articles assigned to this category appear here automatically.
Build a responsive layout with modern CSS
Create fluid pages that adapt instead of relying on dozens of device-specific breakpoints
Read tutorial →Add JavaScript without making the page depend on it
Use JavaScript for enhancement while keeping core content and navigation reliable
Read tutorial →Process a web form safely with PHP
Validate input on the server and produce predictable responses
Read tutorial →Improve real-world web performance
Make pages feel fast on phones and ordinary connections
Read tutorial →