text-color
font-color
font-style
color
Child Selector
Descendant Selector
Adjacent Selector
Universal Selector
~
>
+
*
h1 h2 h3
h1+h2+h3
h1,h2,h3
h1>h2>h3
repeat-x
repeat-y
no-repeat
fixed
list-image
bullet-image
list-style-image
image-style
order
stack
z-index
layer
Universal Selector (*)
Tag Selector
Class Selector
ID Selector
Tag > Class > ID
Class > Tag > ID
ID > Class > Tag
Universal > ID > Class
HTML
CSS
JavaScript
PHP
input.required
input[required]
input(required)
input::required
:focus
:active
:hover
:visited