.fade-in-s {
  transition: .6s;
  opacity: 0;
}

.fade-in-f {
  opacity: 1;
}

.fade-in-s2 {
  transition: .8s;
  opacity: 0;
  width: 0;
}

.fade-in-f2 {
  opacity: 1;
  width: 250px;
}