.image-container {
  display: inline-block;
  text-align: center;
}

.float-img {
  width: 150px;
  height: auto;
  animation: floatUpDown 3s ease-in-out infinite;
}

@keyframes floatUpDown {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
  100% {
    transform: translateY(0);
  }
}