March 2016
Beginner
838 pages
14h 58m
English
Content preview from Web Developer's Reference GuideBecome 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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At-rules
CSS at-rules start with the @ character and are followed by a keyword or identifier. They always have to end with a semicolon (;) character.
Some of the most popular at-rules are @font-face, which is used to declare custom fonts; @import that is used to import external CSS files (not recommended by the way for performance reasons), and it is also used in some CSS preprocessors to bring external partial files that will eventually get compiled into a single CSS file (recommended method); @media is used to declare media queries in our responsive projects or print style sheets and so on; @keyframes is used to create animations and so on.
At-rules, let's see where they're at.
@charset
The @charset() at-rule defines the character encoding to be ...
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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.