February 2010
Intermediate to advanced
352 pages
11h 4m
English
Content preview from HTML & CSS: The Good PartsBecome 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 2. Working with HTML Markup
When building a site, one of the most important tasks that you perform is link creation, but HyperText Markup Language (HTML) offers a heap of features beyond links. HTML documents describe the hypertext and contain much of the content users explore while visiting the Web, connecting them to other resources including presentation style, scripts, images, video, sound, and much more. As you’ll see, a key part of working with HTML is knowing when to let other technologies (and sometimes people) do their work.
HTML has been in constant development since its invention in 1992, and web software (like browsers and web-focused IDEs) have evolved apace. As HTML nears its third decade, clear best practices for markup have emerged both from HTML markup itself and from the technical and business ecosystems that interact with it. Clear HTML syntax lets you build a reliable document tree to hold your content and support additional layers of style and behavior. Chapter 5 is devoted to the features of CSS that interact with the document tree.
HTML Syntax
HTML and its stricter sibling XHTML define a set of rules for marking up documents, as well as rules for how that markup should be structured. HTML parsers (but not XHTML parsers) usually follow a principle referred to as “Postel’s Law,” stated as follows:
Be conservative in what you send, and liberal in what you accept.
Where XHTML requires the creator of the document to write very precise markup, HTML parsers will ...
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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.