Difference between revisions of "Cascading Style Sheets"
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Revision as of 06:22, 2 May 2016
Cascading Style Sheets (CSS) is a language used to define the presentation ("look and feel") of a document written in HTML or some other markup language.
Contents
Style sheet
See Style sheet (web design) for a discussion of style sheets.
Web page layout
CSS is fundamental to web page layout.
Separation of concerns
Separation of concerns is a design principle which requires certain entities to take certain responsibilities, and other entities to take other responsibilities.
In web design, separations of concerns includes the separation of:
- Style sheet provide design, presentation, layout, color
- Markup tags (HTML or XHTML) provides semantic content and structure
This design approach is identified as a "separation" because it largely supersedes the antecedent methodology in which a page's markup (HTML) defined both style and structure. (For example, the font element.)
Selectors
Selectors specify which HTML elements will be selected -- and thus affected -- by a style rule.
Fundamental selectors
See also
- Cascade (CSS)
- Cascade weight (CSS)
- Class selector (CSS)
- Conditional stylesheets
- CSS hacks
- Declaration (CSS)
- Email and HTML
- External style sheet
- HTML element selector (CSS)
- ID selector (CSS)
- Less (stylesheet language)
- Responsive web design
- Sass (stylesheet language)
- Selector
- Separation of concerns
- Style sheet (web design)
- Web page layout
External links
- Cascading Style Sheets @ Wikipedia
- Introduction to CSS 2.1 @ W3C
- Mastering CSS Principles: A Comprehensive Guide @ Smashing Magazine
- 10 Principles of the CSS Masters @ tuts+
- CSS Architectures: Principles of Code Cleanup @ SitePoint
- CSS Best Practices for Team-Based Development @ Microsoft
- Don’t use IDs in CSS selectors?
- How To Develop Scalable And Maintainable CSS @ Vanseo Design
- DRY CSS - "A don't-repeat-yourself methodology for creating efficient, unified and Scalable stylesheets"
- Principles of writing consistent, idiomatic CSS
- Style Sheets Guide: The Cascade
- On HTML Element Identifiers
- Decoupling HTML From CSS
