- From: Ryan Cannon <ryan@ryancannon.com>
- Date: Fri, 1 Jul 2005 00:11:58 -0400
- To: WWW-Style List <www-style@w3.org>
On Jun 30, 2005, at 10:44 PM, Orion Adrian wrote: > where is "of type ID" defined? > From <http://www.w3.org/TR/CSS21/selector.html#id-selectors>: "Document languages may contain attributes that are declared to be of type ID. What makes attributes of type ID special is that no two such attributes can have the same value; whatever the document language, an ID attribute can be used to uniquely identify its element. In HTML all ID attributes are named "id"; XML applications may name ID attributes differently, but the same restriction applies." The spec defines that "of type ID" means one value that can be used as a unique identifier. It then states that the specifics depend on the document language. Depending on whether one is using SGML, RELAX NG or something else as yet uncreated, there may be different ways of specifying "of type ID," but it must adhere to the above principle. -- Ryan Cannon Instructional Technology Web Design http://RyanCannon.com
Received on Friday, 1 July 2005 04:12:08 UTC