@-webkit-keyframes highlightThis {
  from, 20%, 40%, 60%, 80%, to {
    -webkit-animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
  }

  0% {
    opacity: 0;
    -webkit-transform: scale3d(.3, .3, .3);
    transform: scale3d(.3, .3, .3);
  }

  60% {
    opacity: 1;
    -webkit-transform: scale3d(1.03, 1.03, 1.03);
    transform: scale3d(1.03, 1.03, 1.03);
  }

  80% {
    -webkit-transform: scale3d(.97, .97, .97);
    transform: scale3d(.97, .97, .97);
  }

  to {
    opacity: 1;
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }
}

@keyframes highlightThis {
  from, 20%, 40%, 60%, 80%, to {
    -webkit-animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
  }

  0% {
    opacity: 0;
    -webkit-transform: scale3d(.3, .3, .3);
    transform: scale3d(.3, .3, .3);
  }

  60% {
    opacity: 1;
    -webkit-transform: scale3d(1.03, 1.03, 1.03);
    transform: scale3d(1.03, 1.03, 1.03);
  }

  80% {
    -webkit-transform: scale3d(.97, .97, .97);
    transform: scale3d(.97, .97, .97);
  }

  to {
    opacity: 1;
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }
}

.highlightThis {
  -webkit-animation-name: highlightThis;
  animation-name: highlightThis;
  animation-duration: 0.75s;
  animation-delay: 0.5s;
}

.showRight {
  position: absolute;
  border: 2px solid rgb(0, 169, 78);
  border-radius: 300px;
}

.showWrong {
  position: absolute;
  border: 2px solid #d82835;
  border-radius: 300px;
}