.wave {
    animation-name: wave-animation;  /* Refers to the name of @keyframes element below */
    animation-duration: 2.5s;        /* Change to speed up or slow down */
    animation-iteration-count: infinite;  /* Never stop waving :) */
    transform-origin: 70% 70%;       /* Pivot around the bottom-left palm */
    display: inline-block;
  }
  
  @keyframes wave-animation {
      0% { transform: rotate( 0.0deg) }
     10% { transform: rotate(14.0deg) } 
     20% { transform: rotate(-8.0deg) }
     30% { transform: rotate(14.0deg) }
     60% { transform: rotate( 0.0deg) }  
  }