html+css+js-web designer,html5

This Chrome extension serves as a practical learning lab for HTML, CSS, and JavaScript. It enables fast local coding and execution, offers code templates, autocompletion, auto-indentation, syntax coloring, symbol completion, and multi-file search to speed up study and experimentation. Learners can access a variety of learning materials and run examples directly while learning, making concepts easier to understand and apply.

It also connects with GitHub to retrieve projects via Git, syncs via iCloud across devices for seamless collaboration, and supports LAN/FTP-style transfer for efficient sharing. The built-in browser lets you locate materials and run code snippets, while support for many file formats and customizable UI (colors, fonts, backgrounds, tab layout) helps you tailor your learning environment. Additional features include QR code generation for scripts and materials and sharing via email and social networks.