Cascading Style Sheets
Sign in to saveCascading Style Sheets (CSS) is a style sheet language used for specifying the presentation and styling of a document written in a markup language, such as HTML or XML (including XML dialects such as SVG, MathML, or XHTML). CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.
AI overview
Cascading Style Sheets (CSS) is a language that controls how websites look by specifying colors, fonts, spacing, and other visual styling for documents written in HTML or similar markup languages. It's one of the three fundamental technologies that make the modern web work, alongside HTML (which provides the content and structure) and JavaScript (which adds interactive behavior).
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Key facts
- File format.name
- Cascading Style Sheets (CSS)
- File format.extension
- .css
- File format.icon
- Official CSS Logo.svg
- File format.icon_size
- 120px
- File format.iconcaption
- Official logo
- File format.screenshot
- Пример кода на CSS.jpg
- File format.screenshot_size
- 160px
- File format.caption
- Example of CSS source code
- File format.mime
- text/css
- File format.uniform type
- public.css
- File format.developer
- World Wide Web Consortium (W3C)
- File format.genre
- Style sheet language
Article
57 sectionsContents
- Syntax
- Style sheet
- Selector
- Selector types
- Pseudo-classes
- Combinators
- Summary of selector syntax
- Declaration block
- Declaration
- Properties
- Values
- Use
- Sources
- Multiple style sheets
- Cascading
- CSS priority scheme
- Specificity
- Examples
- Inheritance
- Example
- Whitespace
- Indentation
- Positioning
- Position property
- Static
- Relative
- Absolute
- Fixed
- Float and clear
- History
- Difficulty with adoption
- Vendor prefixes
- CSS 1
- CSS 2
- CSS 2.1
- CSS 3
- CSS 4
- Browser support
- Limitations
- Cannot explicitly declare new scope independently of position
- Pseudo-class dynamic behavior not controllable
- Cannot name rules
- Cannot include styles from a rule into another rule
- Cannot target specific text without altering markup
- Advantages
- Separation of content from presentation
- Site-wide consistency
- Bandwidth
- Page reformatting
- Accessibility
- Standardization
- Frameworks
- Design methodologies
- See also
- References
- Further reading
- External links
Cascading Style Sheets (CSS) is a style sheet language used for specifying the presentation and styling of a document written in a markup language, such as HTML or XML (including XML dialects such as SVG, MathML, or XHTML). CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.
CSS is designed to enable the separation of content and presentation, including layout, colors, and fonts. This separation can improve content accessibility, since the content can be written without concern for its presentation; provide more flexibility and control in the specification of presentation characteristics; enable multiple web pages to share formatting by specifying the relevant CSS in a separate .css file, which reduces complexity and repetition in the structural content; and enable the .css file to be cached to improve the page load speed between the pages that share the file and its formatting.