.fade {
  opacity: 0;
  transition: opacity .15s linear;

  &.in {
    opacity: 1;
  }
}

@keyframes spring {
  0% {
    -webkit-transform: scale(0);
    transform: scale(0);
  }

  98% {
    -webkit-transform: scale(1.1);
    transform: scale(1.1);
  }

  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

.spring {
  -webkit-animation: spring .3s;
  animation: spring .3s;

  &.in {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

@keyframes jig {
  0% {
    left: 0px;
  }

  50% {
    left: 8px;
  }

  100% {
    left: 0;
  }
}

.jig {
  position: relative;
  animation: jig 1s infinite ease-in-out;
}

.collapse {
  display: none;

  &.in {
    display: block;
  }
  // tr&.in    { display: table-row; }
  // tbody&.in { display: table-row-group; }
}

.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  transition-timing-function: ease;
  transition-duration: .35s;
  transition-property: height;
}
