@keyframes handwave {
       0% {
           transform: rotate(0deg);
       }

       10% {
           transform: rotate(14deg);
       }

       20% {
           transform: rotate(-8deg);
       }

       30% {
           transform: rotate(14deg);
       }

       40% {
           transform: rotate(-4deg);
       }

       50% {
           transform: rotate(10deg);
       }

       60% {
           transform: rotate(0deg);
       }

       100% {
           transform: rotate(0deg);
       }
   }

   .handwave {
       display: inline-block;
       transform-origin: 70% 70%;
       animation: handwave 3s ease-in-out infinite;
   }