.russ_poster {
  max-height: 280px;
}
.arrow {
  text-align: center;
}
.bounce {
  -moz-animation: bounce 2s infinite;
  -webkit-animation: bounce 2s infinite;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-15px);
  }
  60% {
    transform: translateY(-7px);
  }
}