.anim250ms {
  -webkit-animation: .25s ease;
     -moz-animation: .25s ease;
      -ms-animation: .25s ease;
       -o-animation: .25s ease;
          animation: .25s ease;
  -webkit-animation-fill-mode: both;
     -moz-animation-fill-mode: both;
      -ms-animation-fill-mode: both;
       -o-animation-fill-mode: both;
          animation-fill-mode: both;
}
.anim500ms {
  -webkit-animation: .5s ease;
     -moz-animation: .5s ease;
      -ms-animation: .5s ease;
       -o-animation: .5s ease;
          animation: .5s ease;
  -webkit-animation-fill-mode: both;
     -moz-animation-fill-mode: both;
      -ms-animation-fill-mode: both;
       -o-animation-fill-mode: both;
          animation-fill-mode: both;
}

.anim1000ms {
  -webkit-animation: 1s ease;
     -moz-animation: 1s ease;
      -ms-animation: 1s ease;
       -o-animation: 1s ease;
          animation: 1s ease;
  -webkit-animation-fill-mode: both;
     -moz-animation-fill-mode: both;
      -ms-animation-fill-mode: both;
       -o-animation-fill-mode: both;
          animation-fill-mode: both;
}