.fz, .f0, .f1 {
  -o-object-fit: contain;
     object-fit: contain; }

.fz {
  width: auto;
  -webkit-transition-duration: 0.3s;
       -o-transition-duration: 0.3s;
          transition-duration: 0.3s; }

.f0, .f1 {
  width: auto !important; }

.f2, .f3, .f4 {
  display: block;
  width: 100%;
  height: 100%;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center center; }
  .f2 .f5, .f3 .f5, .f4 .f5 {
    display: none; }

.f3, .f4 {
  background-size: 65% 65% !important; }

.f3, .f0 {
  -webkit-transition-duration: 0s !important;
       -o-transition-duration: 0s !important;
          transition-duration: 0s !important; }