:nth-child()
:nth-last-child()
:nth-of-type()
:nth-last-of-type()
:first-child
:last-child
:first-of-type 
:last-of-type
:only-child 
:only-of-type
:not
:target
Advanced [attr] selectors

Attribute selector operators
Operator 	Description
= 	Matches attribute value exactly and literaly

For example, $$('a[class=menu]') match all <a> elements with the class of menu.
!= 	Matches all elements with the attribute value that is not the value given.

For example, $$('a[class!=menu]') match all <a> elements that dont have the class of menu.
^= 	Matches all elements with the attribute value that starts with the value given.

For example, $$('img[src^=pic]') match all images with the src attribute value that begin the word pic, such as picture.jpg or picture02.jpg.
$= 	Matches all elements with the attribute value that ends with the value given.

For example, $$('img[src$=.gif]') select all images that end with .gif. 