display behaviors in your browser through javascript

box_model-margin, border, padding, content

border, padding & margin can adjust with 1 number, 2 numbers or 4 numbers

4 number syntax for css--goes like a clock(top, right, bottom, left)

binary, decimal, hexadecimal

decimal = base 10, starts 0-9

binary = base 2,

hexadecimal = base 16: 0123456789ABCDEF

10 represents new set in all

#00FF00- first two red, second two green, last two blue


! tab in an html doc creates basic html doc

in html action is a url & method is a verb