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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Global CSS keyword values
The following list of keyword values is ubiquitous to web designers and developers, but have you ever wondered what exactly they mean and do?
auto
The auto CSS keyword value tells the browser to automatically compute the CSS property's value, and it looks like this:
margin: auto;The term auto is short for automatic. It's not the same as saying 100% because 100% is an actual defined value; auto is calculated by the browser.
One of the most common locations to see the keyword auto applied is when centering an element horizontally with the margin CSS property.
CSS:
.element {
margin: auto;
}Tip
I've seen most people use margin: 0 auto; to center an element. This is fine, but the value zero (0) can be omitted. margin: auto; is ...
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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.