.homepage_image {
  position: absolute;
  top: 20px;         /* Distance from top of header */
  right: 40px;       /* Distance from right side */
  max-width: 250px;
  height: auto;
  z-index: 10;
  animation: float 4s ease-in-out infinite;
  pointer-events: none;
  display: none;
}

@media (min-width: 768px) {
  .homepage_image {
    display: block;
  }
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}