animation: animacao linear 0.8s;
  animation-iteration-count: 1;
  transform-origin: 50% 50%;
  -webkit-animation: animacao linear 0.8s;
  -webkit-animation-iteration-count: 1;
  -webkit-transform-origin: 50% 50%;
  -moz-animation: animacao linear 0.8s;
  -moz-animation-iteration-count: 1;
  -moz-transform-origin: 50% 50%;
  -o-animation: animacao linear 0.8s;
  -o-animation-iteration-count: 1;
  -o-transform-origin: 50% 50%;
  -ms-animation: animacao linear 0.8s;
  -ms-animation-iteration-count: 1;
  -ms-transform-origin: 50% 50%;