@keyframes reflection {
  0% {
    left: -100%;
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    left: 100%;
    opacity: 0;
  }
}

.shine::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(-75deg, rgba(255, 255, 255, 0) 30%, rgba(255, 255, 255, 0.8) 50%, rgba(255, 255, 255, 0) 70%);
  animation: reflection 4s 1 forwards;
}

body {
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}