/* https://stackoverflow.com/questions/28064286/fade-animation-between-state-transitions-in-ui-router */
.main.ng-enter {
  transition: 0.25s;
  opacity: 0.5;
}
.main.ng-enter-active {
  opacity: 1;
}
.main.ng-leave {
  transition: 0s;
  opacity: 0.5;
}
.main.ng-leave-active {
  opacity: 0;
}