//爆炸效果
@keyframes fireworks {
  0% {
    transform: scale(0, 0);
  }
  60% {
    transform: scale(1, 1);
    opacity: 1;
  }
  95%{
    transform: scale(0.9, 0.9);
  }
  100%{
    transform: scale(0.9, 0.9);
    opacity: 0;
  }
}

//爆炸图绑定动画
animation: fireworks 2s 0.5s linear infinite;