X)HTML Elements Best Practice Sheet. You are probably using Firefox 3.5 or another browser based on Gecko 1.9.1 or newer.
Experimental features have been turned on. Please contact Lars Gunther to report any issues. Warning! This page is not being maintained and may contain outdated information. Just use the HTML5 doctype anyway! Web Color Chart - Hexadecimal - by VisiBone. Cascading Style Sheets, Level 2. This specification defines Cascading Style Sheets, level 2 revision 1 (CSS 2.1).
CSS 2.1 is a style sheet language that allows authors and users to attach style (e.g., fonts and spacing) to structured documents (e.g., HTML documents and XML applications). By separating the presentation style of documents from the content of documents, CSS 2.1 simplifies Web authoring and site maintenance. CSS 2.1 builds on CSS2 [CSS2] which builds on CSS1 [CSS1].
It supports media-specific style sheets so that authors may tailor the presentation of their documents to visual browsers, aural devices, printers, braille devices, handheld devices, etc.