html - How to center a link using CSS -

i new , messing around code ( html , css ) can't link center text? id's practice know aren't required.

http://pastebin.com/kyyr6wux

i provided solution css. take @ link http://jsfiddle.net/qpafk/

div {     width: 100px; }  div {     text-align: center;     display: block;     margin: 0 auto; }