CSS selectors in web pages

Jason Gurtz jason at tommyk.com
Thu Sep 23 07:11:23 PDT 2004


On 9/22/2004 16:15, Nico R. wrote:

> Media types or subtypes beginning with "X-" or "x-" are the only ones
> which can be used without registration, e.g. for experimental purposes.
> RFC 2045 has some details on this.

I had always wondered what that X-'s meaning was.  Thanks.

~Jason

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