aside {
  display: inline-block;
  position: absolute;
  right: 2px;
}

aside img {
  width: 50px;
  border-radius: 50%;
  background-color: white;
  animation: blink 6s infinite;
  box-shadow: 3px 3px 10px white;
}

@keyframes blink {
  0% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.2;
  }
  100% {
    opacity: 0.6;
  }
}