CSS Basics

The selector can be the html tag's id= value
< body id= "main" ....
To reference the body tag....
#main

Definitions

border-collapse:collapse;
** The code makes the borders not show up within your table, only the outside edge shows.

display:block;
** The element will generate a block box (a line break before and after the element)
** Used to display an element as a blocok level element.
     This means the element has a line break before and after it.
     An example of using display block: p { display:block; } will set all p elements to block elements.