.container5{ height: 100%; margin: 0 auto 0 auto; max-width: 100%; width: 100%; }
.container5 .zoom{ background-color: #DDD; height: 100%; margin: auto; overflow: hidden; width: 100%; }
.container5 .zoom .media{ bottom: 0; display: block; left: 0; margin: auto; max-height: 100%; max-width: 100%; 
  -moz-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  -o-transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d; 
}
.transition{
  transition: -moz-transform ease 200ms;
  transition: -ms-transform ease 200ms;
  transition: -o-transform ease 200ms;
  transition: -webkit-transform ease 200ms;
  transition: transform ease 200ms;
}