body {
  background-color: #FFF; }

.b4parallax {
  opacity: 0;
  -webkit-transition: .35s all ease-in-out;
  -moz-transition: .35s all ease-in-out;
  -ms-transition: .35s all ease-in-out;
  -o-transition: .35s all ease-in-out;
  transition: .35s all ease-in-out; }