@keyframes hinge { 0% { transform: rotate(0); transform-origin: top left; animation-timing-function: ease-in-out; } 20%, 60% { transform: rotate(80deg); transform-origin: top left; animation-timing-function: ease-in-out; } 40% { transform: rotate(60deg); transform-origin: top left; animation-timing-function: ease-in-out; } 80% { transform: rotate(60deg) translateY(0); opacity: 1; transform-origin: top left; animation-timing-function: ease-in-out; } 100% { transform: translateY(700px); opacity: 0; } }