Cascading Style Sheets
CSS is designed primarily to enable the separation of document content from document presentation, including elements such as the layout, colors, and fonts. This separation can improve content accessibility, provide more flexibility and control in the specification of presentation characteristics, enable multiple HTML pages to share formatting by specifying the relevant CSS in a separate .css file, and reduce complexity and repetition in the structural content.
IN SHORT - Cascading Style Sheets (CSS) is a simple mechanism for adding style (ie: fonts, colors, spacing) to Web documents.
- there are no 'tags' in a .CSS file, ie: <html>, <body>, etc
- files are saved as .css
- the link to an HTML page is put in the <head> section
- the link is <link rel="stylesheet" type="text/css" href="name of css file & extension">