July 2012
Intermediate to advanced
1034 pages
38h 32m
English
Content preview from Dreamweaver CS6: The Missing ManualBecome 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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Compound Selectors
It’s pretty easy to learn how to use tag, class, and ID styles. To be technically accurate, all these styles aren’t really styles. In CSS lingo, they’re selectors, instructions that tell a browser what it should look for so it can apply CSS formatting rules. For example, a tag selector (not to be mistaken with Dreamweaver’s time-saving selection tool, the Tag Selector) tells a browser to apply formatting to any instance of a particular tag on the page. Thus, browsers apply h1 tag styles to all <h1> tags on a page. They apply class selector styles, on the other hand, only when they encounter the class name attached to an element on a page. Similarly, browsers apply ID selector styles to a tag with a matching ID name, for example <body id=“home”>. (Flip back to Types of Styles for a review of key differences between class and ID selectors.)
Note
For a detailed discussion of selectors, visit http://tinyurl.com/29dnb4.
But tag, class, and ID selectors are just the tip of the selector iceberg. CSS offers many other selector types that let you format even the smallest page element; Dreamweaver lumps these laser-focused selectors under the term compound selectors. “Compound selector” is a Dreamweaver term, not a CSS term, so don’t go using it at your weekly web designer get-togethers. Dreamweaver uses the term to describe advanced selectors, such as the “pseudo-class” styles you use to format different link states (a:link, a:visited, a:hover, and a:active, as described ...
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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.