@keyframes barWidth {
    0%   {width: 0%;}
    25%  {width: 50%;}
    50%  {width: 100%;}
    75%  {width: 50%;}
    100% {width: 0%;}
}
@keyframes barWidth2 {
    0%   {width: 0%;}
    50%  {width: 50%;}
    100% {width: 100%;}
}
.horizontal-bar-wrap{
  display: none;
  height: 3px;
  width: 100%;
  .bar{
    position: relative;
    width: 0%;
    height: 100%;
    margin: 0 auto;
    animation: barWidth;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    &.bar1{
      animation-delay: 0s;
      background: #0a8fe3;
      top: 0;
      z-index: 1;
    }
  }
}