.right_column{
  width: 230px;
  float: right;
  min-height: 400px;
  padding: 0 10px 0 5px;
}

img.main_links{
  float: left;
  border: 0px;
  margin-bottom: 10px;
  margin-left: 10px;
}

div.portalesmedicos{
  text-align: center !important;
  clear: both;
  width: 100%;
}

div.portalesmedicos a{
  margin: 10px auto !important;
}