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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CSS Level 4 selectors
There are a number of new selector types being specified for CSS Selectors Level 4 (the latest version available was the Editor's Draft dated December 14, 2014, (http://dev.w3.org/csswg/selectors-4/). However, as I write this, there are no implementations of them in browsers. As such we will just look at one example as they are liable/probable to change.
The Relational Pseudo-class selector is from the 'Logical Combinations' (http://dev.w3.org/csswg/selectors-4/) section of the latest draft.
The :has pseudo class
This selector takes this format:
a:has(figcaption) {
padding: 1rem;
}This would add padding to any item a tag that contains a figcaption. You could invert the selection in combination with the negation pseudo class too: ...
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