@charset "UTF-8";

body {
  background:pink repeat fixed url(http://s13.postimg.org/msd0gb32f/20121020_040807.jpg);
  width:900px;
/*added code*/
  margin:0 auto;
}

.profile_section_background {
  background-color:#FFFFFF;
  opacity:.8;
}

body {
  width:900px;
/*Adjust the size of your centered content. 900-1024 px is recommended*/
  margin:0 auto;
}