<div> Or <span>

<DIV> OR <SPAN>

I see these.

I use these.

How does each one effect the layout and peformance of the Page.

doesnt <div> put in a breakrule?

<div> is a generic block element, <span> is a generic inline element...
should be used ONLY when there is no semantically meaningfull alternative

http://webdesign.about.com/cs/htmltags/a/aa011000a.htm Feeling too lazy to type lol