CSS stands for Cascading Style Sheet.
Cascading: Multiple styles can overlap in order to specify a range of style from a whole web site down to a unique element. Which style gets applied pertains to the rules of CSS cascading logic.
Style: CSS deals specifically with the presentation domain of designing a web page (color, font, layout, etc).
Sheet: Normally, CSS is a file separate from the HTML file –linked to the HTML file through its <head> (exceptions apply).
Significance of CSS
- Allows for much richer document appearances
- Reduce workload by centralizing commands for visual appearance instead of scattered throughout HTML doc.
- Use same style on multiple pages
- Reduce page size
- Use HTML for content; CSS for Presentation.
3 Implementations
- In-line - as attribute
- Embedded/Internal - as a style tag
- Internal - linked from CSS files
Selectors
- Element Selectors
- Class Selectors
- ID Selectors
- Pseudo Selectors
(c) Sir Tom :)
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