December 2013
Intermediate to advanced
518 pages
15h 36m
English
Content preview from HTML5: The Missing Manual, 2nd 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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Chapter 1. Introducing HTML5
If HTML were a movie, HTML5 would be its surprise twist. HTML wasn’t meant to survive into the 21st century. The official web standards organization, the W3C (short for World Wide Web Consortium), left HTML for dead way back in 1998. The W3C pinned its future plans on a specification called XHTML, which it intended to be HTML’s cleaned-up, modernized successor. But XHTML stumbled, and a group of disenfranchised rebels resuscitated HTML, laying the groundwork for the features that you’ll explore in this book.
In this chapter, you’ll get the scoop on why HTML died and how it came back to life. You’ll learn about HTML5’s philosophy and features, and you’ll consider the thorny issue of browser support. You’ll also get your first look at an authentic HTML5 document.
The Story of HTML5
The basic idea behind HTML—that you use elements to structure your content—hasn’t changed since the Web’s earliest days. In fact, even the oldest web pages still work perfectly in the most modern web browsers.
Being old and successful also carries some risks—namely, that everyone wants to replace you. In 1998, the W3C stopped working on HTML and attempted to improve it with an XML-powered successor called XHTML 1.0.
XHTML 1.0: Getting Strict
XHTML has most of the same syntax conventions as HTML, but it enforces stricter rules. Much of the sloppy markup that traditional HTML permitted just isn’t acceptable in XHTML.
For example, suppose you want to italicize the last word in a heading, ...
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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.