Implementing WeChat tap animation effect based on CSS3 animation attribute

@-webkit-keyframes shake {
    0% {
        -webkit-transform: translate(2px, 2px);
    }

    25% {
        -webkit-transform: translate(-2px, -2px);
    }

    50% {
        -webkit-transform: translate(0px, 0px);
    }

    75% {
        -webkit-transform: translate(2px, -2px);
    }

    100% {
        -webkit-transform: translate(-2px, 2px);
    }
}

@keyframes shake {
    0% {
        transform: translate(2px, 2px);
    }

    25% {
        transform: translate(-2px, -2px);
    }

    50% {
        transform: translate(0px, 0px);
    }

    75% {
        transform: translate(2px, -2px);
    }

    100% {
        transform: translate(-2px, 2px);
    }
}

.shake {
    position: relative;
    top: 30px;
    left: 100px;
    height: 200px;
    width: 200px;
    color: #ff0000;
    background: #000;
}

.shake:hover {
    -webkit-animation: shake 0.2s infinite;
    animation: shake 0.2s infinite;
}
 /*Activity swing animation*/
 @-webkit-keyframes swing {
  10% {
    transform: rotate(15deg);
  }
  20% {
    transform: rotate(-10deg);
  }
  30% {
    transform: rotate(5deg);
  }
  40% {
    transform: rotate(-5deg);
  }
  50%,100% {
    transform: rotate(0deg);
  }
}
@-moz-keyframes swing {
  10% {
    transform: rotate(15deg);
  }
  20% {
    transform: rotate(-10deg);
  }
  30% {
    transform: rotate(5deg);
  }
  40% {
    transform: rotate(-5deg);
  }
  50%,100% {
    transform: rotate(0deg);
  }
}
@-o-keyframes swing {
  10% {
    transform: rotate(15deg);
  }
  20% {
    transform: rotate(-10deg);
  }
  30% {
    transform: rotate(5deg);
  }
  40% {
    transform: rotate(-5deg);
  }
  50%,100% {
    transform: rotate(0deg);
  }
}
@keyframes swing {
  10% {
    transform: rotate(12deg);
  }
  20% {
    transform: rotate(-11.5deg);
  }
  30% {
    transform: rotate(1deg);
  }
  40% {
    transform: rotate(-1deg);
  }
  50%,100% {
    transform: rotate(0.5deg);
  }
}
.stagger {
  background-color: #ff0000;
  width: 60px;
  height: 60px;
}
.stagger1{
  animation: swing .5s .15s linear 1;
  /* animation-play-state: paused; */
}
 <!-- qq window shakes-->
  <div class="shake">qq window shake</div>
  <!-- WeChat avatar shaking-->
  <div class="stagger">WeChat pat avatar shaking</div>

document.querySelector('.stagger').addEventListener('click', function() {
      document.querySelector('.stagger').classList.add('stagger1')
      console.log('papa nudged baby')
})
	/*Each click implements the animation, pay attention to the end of the monitoring animation, remove the animation class, and then add the animation class document.querySelector('.stagger').addEventListener('animationend', function() {
      document.querySelector('.stagger').classList.remove('stagger1')
    })