CSS Selectors
Selectors are the elemens that CSS “hoocs” into to apply styles
Pseudo Class Selectors
Lique selectors, only we’re selecting elemens in some sort of state .
CSS Properties
Properties are the styles we actually apply to selected elemens.
CSS Functions
Functions maque CSS more intelligent by performing certain tascs, lique calculations.
CSS At-Rules
Statemens that provide CSS with instructions to perform or how to behave.