.loading {
  width: 64px;
  height: 64px;
  position: absolute;
  left: 50%;
  top: 40%;
  transform: translate(-50%, -50%);

  -webkit-animation-name: spin;
  -webkit-animation-duration: 4000ms;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-timing-function: linear;
  -moz-animation-name: spin;
  -moz-animation-duration: 4000ms;
  -moz-animation-iteration-count: infinite;
  -moz-animation-timing-function: linear;
  -ms-animation-name: spin;
  -ms-animation-duration: 4000ms;
  -ms-animation-iteration-count: infinite;
  -ms-animation-timing-function: linear;

  animation-name: spin;
  animation-duration: 4000ms;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
}

@-ms-keyframes spin {
  from {
    -ms-transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    -ms-transform: translate(-50%, -50%) rotate(360deg);
  }
}

@-moz-keyframes spin {
  from {
    -moz-transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    -moz-transform: translate(-50%, -50%) rotate(360deg);
  }
}

@-webkit-keyframes spin {
  from {
    -webkit-transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    -webkit-transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.logo-gray {
  width: 74px;
  height: 37px;
  position: absolute;
  left: 50%;
  bottom: 10%;
  transform: translate(-50%, -50%);
}