.loader {
  font-size: 0;
  line-height: 0;
  height: 4px;
  position: relative;
  width: 340px;
  overflow: hidden;
}
.loader i {
  width: 100%;
  top: 0;
  left: 0;
  height: 100%;
  display: inline-block;
  background-color: transparent;
  position: absolute;
}
.loader i:before, .loader i:after {
  content: "";
  width: 50%;
  height: 100%;
  position: absolute;
}
.loader i:before {
  -webkit-animation: slideLeft 1s 1s both cubic-bezier(0.34, 0.13, 0.14, 0.99);
          animation: slideLeft 1s 1s both cubic-bezier(0.34, 0.13, 0.14, 0.99);
  left: 0;
}
.loader i:after {
  -webkit-animation: slideRight 1s 1s both cubic-bezier(0.34, 0.13, 0.14, 0.99);
          animation: slideRight 1s 1s both cubic-bezier(0.34, 0.13, 0.14, 0.99);
  right: 0;
}
.loader i.grey:before, .loader i.grey:after {
  background-color: #38434e;
}
.loader i.red:before, .loader i.red:after {
  background-color: #64cffc;
}
.loader i.green:before, .loader i.green:after {
  background-color: #00b0fc;
}
.loader i.blue:before, .loader i.blue:after {
  background-color: #5fb4ff;
}
.loader i.yellow:before, .loader i.yellow:after {
  background-color: #86d7f9;
}
.loader i.purple:before, .loader i.purple:after {
  background-color: #0b9edd;
}

@-webkit-keyframes slideLeft {
  0% {
    -ms-transform: translate(0, 0);
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
  }
  100% {
    -ms-transform: translate(-100%, 0);
    -webkit-transform: translate(-100%, 0);
    transform: translate(-100%, 0);
  }
}

@keyframes slideLeft {
  0% {
    -ms-transform: translate(0, 0);
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
  }
  100% {
    -ms-transform: translate(-100%, 0);
    -webkit-transform: translate(-100%, 0);
    transform: translate(-100%, 0);
  }
}
@-webkit-keyframes slideRight {
  0% {
    -ms-transform: translate(0, 0);
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
  }
  100% {
    -ms-transform: translate(100%, 0);
    -webkit-transform: translate(100%, 0);
    transform: translate(100%, 0);
  }
}
@keyframes slideRight {
  0% {
    -ms-transform: translate(0, 0);
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
  }
  100% {
    -ms-transform: translate(100%, 0);
    -webkit-transform: translate(100%, 0);
    transform: translate(100%, 0);
  }
}