@keyframes opacity-bounce { 
      0% {opacity: 0;transform: translateY(100%); } 
      60% { transform: translateY(-20%); } 
      100% { opacity: 1; transform: translateY(0); }
    }
    
.gd-ad-flex-parent {
      animation-name: opacity-bounce; 
      animation-duration: 800ms; 
      animation-delay: 400ms; 
      animation-fill-mode: forwards; 
      animation-timing-function: ease; 
      opacity: 0;
}