tells the browser the style of the site. Determines font types,colors, sizes, graphics icons, background colors,borders, you name it.
Back
CSS ID
Front
names a particular element of the site. Used for elements that appear once on a page
Back
Stylesheet Header
Front
Passes information about your theme to wordpress
Back
CSS classes
Front
Used as many times as you need, names a particular element of the site
Back
Comments
Front
Code statements included only for programmers, devs, and others who read the code. Always begin with / and end with /.
Wordpress uses comments to get info about your theme.