The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web.

Help 2

The @font-face rule is a W3C standard allowing authors to specify online fonts for displaying text on their webpages.
Up until now, if you wanted to use fonts on a website you were limited to one of the dozen or so ‘web-safe’ fonts (Verdana, Times, Helvetica—you know, the ones you see everywhere on the web).

Other pages 1

How to use Typotheque Webfont embedding Service allows using custom fonts in the website using @font-face rule in CSS. Simple tutorial. Cross-browser font embedding