Sexton web sites kostenlose ficktreffen Leverkusen
Please refer to the section on automatic page refresh for information on why META should not be used to redirect or auto-refresh pages. The first changes the user's page at page at regular intervals.
Content developers should not use this technique to simulate "push" technology.
The W3C Validation Service validates documents against a whole list of published grammars. Refer to the Technologies Reviewed for Accessibility.
Checkpoints in this section: The LINK element may also be used to designate alternative documents.
The deprecated examples are highlighted and readers should approach them with caution -- they are meant for illustrative purposes only.
This version has been published to correct some broken links in the previous version.
This Note has not been reviewed or endorsed by W3C Members.
Validating to a published formal grammar and declaring that validation at the beginning of a document lets the user know that the structure of the document is sound.
It also lets the user agent know where to look for semantics if it needs to.
Developers cannot predict how much time a user will require to read a page; premature refresh can disorient users.
Content developers should avoid periodic refresh and allow users to choose when they want the latest information.