Pop effect

pop.css

.pop {
  display: block;
  -webkit-animation-name: pop;
  -webkit-animation-duration: .6s;
  -webkit-animation-iteration-count: 1;
  -webkit-animation-timing-function: ease-in-out;
  }
  
    @-webkit-keyframes pop {
      from {
        -webkit-transform: scale(.4);
        opacity: 0;
      }
      46% {
        -webkit-transform: scale(1.15);
        opacity: 1;
      }
      to {
        -webkit-transform: scale(1);
        opacity: 1;
      }
    }