How To Add CSS

How To Add CSS
Three Ways to Insert CSS
There are three ways of inserting a style sheet:
  • External CSS
  • Internal CSS
  • Inline CSS
External CSS:
With an external style sheet, you can change the look of an entire website by changing just one file!
Each HTML page must include a reference to the external style sheet file inside the <link> element, inside the head section.
Internal CSS:
An internal style sheet may be used if one single HTML page has a unique style.
The internal style is defined inside the <style> element, inside the head section.
Inline CSS:
An inline style may be used to apply a unique style for a single element.
To use inline styles, add the style attribute to the relevant element. The style attribute can contain any CSS property.