Real-time HTML Editor. HTML 5 Cheat Sheet (PDF) - Smashing Magazine.
HTML color codes. HTML color codes are hexadecimal triplets representing the colors red, green, and blue (#RRGGBB).
For example, in the color red, the color code is #FF0000, which is '255' red, '0' green, and '0' blue. These color codes can be used to change the color of the background, text, and tables on a web page. Major hexadecimal color codes. Dive Into HTML5. HTML Tags / Codes / Web Page Design. HTML Help by The Web Design Group. HTML Codes - Table of ascii characters and symbols. HTML and CSS Tutorials, References, and Articles.
Dynamic Drive DHTML(dynamic html) & JavaScript code library. HTML Goodies: The Ultimate HTML Resource: Free HTML, CSS, JavaScript Tutorials. World Wide Web Consortium (W3C) HTML 4.01 / XHTML 1.0 Reference. HTML Code Tutorial - Free Reference Guide for Help with HTML Tags Including Form, Frames, Tables, and more! HTML Tutorial.