body{font-family:sans-serif}.container{width:100%;display:flex;flex-direction:column}.board{padding:20px;border-radius:8px}.instructions{width:33vw;display:flex;flex-direction:column}.row{display:flex;justify-content:center}.cell{width:10px;height:10px;border:1px solid grey}.alive{background-color:#000}button{margin:1rem}.button-bar,header{width:100%;display:flex;justify-content:center}