August 2015
Intermediate to advanced
312 pages
7h 3m
English
Content preview from Responsive Web Design with HTML5 and CSS3, Second 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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New CSS3 selectors and how to use them
CSS3 gives incredible power for selecting elements within a page. You may not think this sounds very glitzy but trust me, it will make your life easier and you'll love CSS3 for it! I'd better qualify that bold claim.
CSS3 attribute selectors
You've probably used CSS attribute selectors to create rules. For example, consider the following rule:
img[alt] {
border: 3px dashed #e15f5f;
}This would target any image tags in the markup which have an alt attribute. Or, let's say we wanted to select all elements with a data-sausage attribute:
[data-sausage] {
/* styles */
}All you need is to specify the attribute in squared brackets.
Tip
The data-* type attribute was introduced in HTML5 to provide a place for custom data ...
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