Answer to Question #1= CSS Stands for “Cascading Style Sheets
Answer to Question #2= CSS was created to describe the style of HTML in a webpage
Answer to Question #3= There are 3 different styles and they are inline, internal, and external
Answer to Question #4= Inline styles are what changes the tag they are written in without any selectors, they are used in html and are related to css. They are used to show how the webpage will look, it might be a preferred method as it does help with how the webpage will eventually look and how another one perceives it.
Six style tip guides are to: use lower case element names, close all html elements, close empty html elements, use lower case attribute names, quote attribute values, and to always add the "alt" attribute to images.