[css3]赤いパケットのジッター効果を実現するCSS3

.red_packet {
  width: 180rpx;
  height: 220rpx;
  position: fixed;
  top: 10rpx;
  right: 20rpx;
  color: #D60E19;
  animation: shake .5s linear infinite;
}
@keyframes shake {

  25% {
    transform: rotate(7deg);
  }
  75% {
    transform: rotate(-7deg);
  }

  50%,
  100% {
    transform: rotate(0);
  }
}

.red_packet {
  width: 180rpx;
  height: 220rpx;
  position: fixed;
  top: 10rpx;
  right: 20rpx;
  color: #D60E19;
  animation: shake 3s linear infinite;
}

@keyframes shake {

  70%, 80% {
    transform: rotate(7deg);
  }
  75% {
    transform: rotate(-7deg);
  }

  65%,
  85% {
    transform: rotate(0);
  }
}