#bars2 {
  display: block;
  position: fixed;
  top: 50%;
  left: 50%;
  height: 50px;
  width: 50px;
  margin: -25px 0 0 -25px;
  z-index: 100;
}

#bars2 span {
  position: absolute;
  display: block;
  bottom: 10px;
  width: 9px;
  height: 5px;
  background: rgba(0, 0, 0, 0.25);
  -webkit-animation: bars2 2s  infinite ease-in-out;
          animation: bars2 2s  infinite ease-in-out;
}

#bars2 span:nth-child(2) {
  left: 11px;
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s;
}

#bars2 span:nth-child(3) {
  left: 22px;
  -webkit-animation-delay: 0.3s;
          animation-delay: 0.3s;
}

#bars2 span:nth-child(4) {
  left: 33px;
  -webkit-animation-delay: 0.4s;
          animation-delay: 0.4s;
}

#bars2 span:nth-child(5) {
  left: 44px;
  -webkit-animation-delay: 0.5s;
          animation-delay: 0.5s;
}

@-webkit-keyframes bars2 {
  0% {
    height: 5px;
    -webkit-transform: translateX(0px);
            transform: translateX(0px);
    background: rgba(0, 0, 0, 0.25);
  }
  25% {
    height: 30px;
    -webkit-transform: translateX(5px);
            transform: translateX(5px);
    background: #000000;
  }
  50% {
    height: 5px;
    -webkit-transform: translateX(10px);
            transform: translateX(10px);
    background: rgba(0, 0, 0, 0.25);
  }
  100% {
    height: 5px;
    -webkit-transform: translateX(15px);
            transform: translateX(15px);
    background: rgba(0, 0, 0, 0.25);
  }
}