<button class="shine">Shiny Button</button>

@keyframes shine {
  0% {
    transform: translateX(-30px) rotate(-25deg);
  }
  
  100% {
    transform: translateX(250px) rotate(-25deg);
  }
}

.shine {
  margin: 1rem;
  background: #1693A5;
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  width: 250px;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 5px;
  position: relative;
  overflow: hidden;
  transition: all 100ms linear;
}

.shine:hover {
  transform: scale(1.05) rotate(-2.5deg);
}

.shine:hover::after {
  content: '';
  display: block;
  width: 75px;
  height: 175%;
  background: rgb(255,255,255);
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 25%, rgba(255,255,255,1) 50%, rgba(255,255,255,1) 75%, rgba(255,255,255,0) 100%);
  opacity: 0.5;
  position: absolute;
  top: -20px;
  left: 0;
  animation: shine 200ms linear;
  transform: translateX(250px) rotate(-25deg);
}