.w_b_shake_2{animation:w_b_shake_2 3s linear infinite}@keyframes w_b_shake_2{5%{transform:perspective(500px) rotateY(0deg)}10%{transform:perspective(500px) rotateY(-45deg)}20%{transform:perspective(500px) rotateY(45deg)}30%{transform:perspective(500px) rotateY(-50deg)}40%{transform:perspective(500px) rotateY(50deg)}50%{transform:perspective(500px) rotateY(-45deg)}55%{transform:perspective(500px) rotateY(0deg)}}