October 2017
Intermediate to advanced
522 pages
10h 9m
English
Content preview from Mastering CSS
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The weights of different selectors
All selectors are assigned a weight, and the heaviest selector takes precedence when conflicting CSS rules exist. It's natural when architecting a website that you have general styles that get overridden with more specific styles in different circumstances. In the global area at the top of the style sheet, a very broad style has been set for all paragraph elements:
p { font-size: 16px; line-height: 1.6; margin-bottom: 20px;}
The font size is 16px. There is a line-height property of 1.6 and 20px of margin-bottom. Naturally, I might want to overwrite either line-height or margin-bottom under varying circumstances. Let's try and override that with a new rule set with a selector of .content-block p:
p { font-size: ...Become 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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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.
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