February 2006
Intermediate to advanced
826 pages
63h 42m
English
Content preview from Web Design in a Nutshell, 3rd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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DTD Options
HTML 4.01 and XHTML 1.0 offer three DTD versions:
Strict
Transitional
Frameset
XHTML 1.1 has only one DTD. The DTD documents live on the W3C server at a stable URL.
The <!DOCTYPE> (document type) declaration contains two methods for pointing to DTD information: one is a publicly recognized document identifier; the other is a specific URL in case the browsing device does not recognize the public identifier. Descriptions and specific markup for each HTML and XHTML version are listed here.
- HTML 4.01 Strict
The Strict DTD omits all deprecated elements and attributes. If you are authoring according to the strict DTD, use this document type definition:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/HTML4.01/strict.dtd">- HTML 4.01 Transitional
The Transitional DTD includes everything from the Strict DTD, plus all deprecated elements and attributes. If your document includes some deprecated elements or attributes, point to the Transitional DTD using this DOCTYPE declaration:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/HTML4.01/loose.dtd">- HTML 4.01 Frameset
If your document contains frames—that is, it uses
framesetinstead ofbodyfor its content—then identify the Frameset DTD. The Frameset DTD is the same as the Transitional version (it includes deprecated yet supported elements and attributes), with the addition of frame-specific elements. The content-containing HTML documents that are displayed within the frames ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.