@keyframes bounceIn {
     0% {
       transform: translateY(-1000px);
       opacity: 0;
     }
     60% {
       transform: translateY(30px);
       opacity: 1;
     }
     80% {
       transform: translateY(-10px);
     }
     100% {
       transform: translateY(0);
     }
   }
   .add_bounce {
     animation: bounceIn 1s ease-out;
   }