Sticky Footer , fixed footer, pinned footer

1. through css

    #footer {

   position:fixed;

   left:0px;

   bottom:0px;

   height:30px;

   width:100%;

   background:#999;

}

2. jQuery Easy Pinned Footer

http://jack-fx.com/net/2013/05/21/sticky-footer-fixed-footer-pinned-footer/