.animated {
  animation-duration: 1.5s;
  animation-fill-mode: both;
  animation-iteration-count: infinite;
}

.animated:hover {
  animation-iteration-count: infinite;
}

@keyframes tada {
  30%, 100% {
    -webkit-transform: scale3d(1, 1, 1);
    -ms-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }
  30%, 50%, 70% {
    -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    -ms-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
  }
  40%, 60% {
    -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    -ms-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
  }
}

.tada {
  animation-name: tada;
}

#modal-1 {
  position: absolute;
  z-index: 1000;
  top: 100px;
  left: 50px;
}