css bottom 3a0 isnt the bottom of the page

1/* You need to add position: relative; to the parent container, which in this case is .wrapper. */
2
3<div class = "wrapper">
4	<div class = "bottom"><div>
5</div>
6
7.wrapper {
8	position:relative;
9}
10
11.bottom {
12    position:absolute;
13}