@-moz-keyframes test {
  0%, 100% {
    opacity: 1; }

  50% {
    opacity: 0; } }
@-webkit-keyframes test {
  0%, 100% {
    opacity: 1; }

  50% {
    opacity: 0; } }
@keyframes test {
  0%, 100% {
    opacity: 1; }

  50% {
    opacity: 0; } }
.animation {
  -moz-animation: test;
  -webkit-animation: test;
  animation: test; }