October 2006
Intermediate to advanced
680 pages
21h 44m
English
Content preview from HTML & XHTML: The Definitive Guide, 6th 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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XFrames
Frames are a rags-to-riches success story. From a nonstandard extension in the Netscape browser to a standard component of HTML and XHTML, frames have proven themselves as a core element of the HTML world. Nonetheless, there are problems with frames that have never been fully resolved:
Navigation with a browser's Back button can be unpredictable.
You cannot directly reference a document within a frameset.
You cannot reference a particular collection of frames with a single URL.
Search engines often do not follow framed content.
To correct these deficiencies while retaining the power of frames, the World Wide Web Consortium (W3C) has proposed a slightly different model for framed content. This model is still a working document, and has not yet been implemented in any browser. Still, we briefly describe it here to make authors aware of what they might expect from frames in the near future.
An XFrames Document
Within HTML and XHTML, frames replace the <body> of a document, leaving the
<html> and <head> tags intact. In the XFrames
model, an XFrames document replaces the entire <html> document, carrying with it its
own <head> and framed
content. Within the <head>
tag, authors can provide a <title> and <style> tags; the framed content is
then denoted within <group>
and <frame> tags. A short
XFrames document might look like this:
<frames xmlns="http://www.w3.org/2002/06/xframes/"> <head> <title>Kumquat Lore</title> <style type="text/css"> #header {height: 10em } #toc, #nav {width: 20%} ...Become 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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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.