#example .new { opacity: 0; }
#example { display:none; }
#example .div_opacity {
  -webkit-transition: opacity .2s ease-in-out;
  -moz-transition: opacity .2s ease-in-out;
  -ms-transition: opacity .2s ease-in-out;
  -o-transition: opacity .2s ease-in-out;
  transition: opacity .2s ease-in-out;
  opacity: 1;
}