CSS Selectors Revisited!
Tag:
a{text-decoration:none}
removes all underlines for anchors.

*{color:white}
sets the font color to white in ALL elements
ID:
#outercontainer { width:1020px}
sets the html object with id="outercontainer" to a width of 1020 pixels.
Class:
.box {width:120px;min-height:220px}
sets html obhjects with class="box to a width of 120 pixels and a MINIMUM height of 220 pixels (no max height so they can go as tall as the content needs).
Compound:
.linkbox a
would target all anchors inside an html object of class "linkbox."

a:hover
would target anchor tags when a user is hovering over that anchor.

#menu *
would target all elements/objects inside the element IDed as "menu"