.start-button{animation:ready-to-start .7s linear;animation-delay:.1s}@keyframes ready-to-start{0%,to{transform:scale(1)}10%{transform:scale(1.1) rotate(20deg)}30%{transform:scale(1.1) rotate(-20deg)}50%{transform:scale(1.1) rotate(10deg)}70%{transform:scale(1.1) rotate(-10deg)}}