.loading {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.loader {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
  margin: 15px auto;
  position: relative;
  color: #F8333C;
  left: -100px;
  box-sizing: border-box;
  animation: shadowRolling 2s linear infinite;
}

@keyframes shadowRolling {
  0% {
    box-shadow: 0px 0 rgba(245, 199, 84, 0), 0px 0 rgba(245, 199, 84, 0),
      0px 0 rgba(245, 199, 84, 0), 0px 0 rgba(245, 199, 84, 0);
  }
  12% {
    box-shadow: 100px 0 #F8333C, 0px 0 rgba(245, 199, 84, 0),
      0px 0 rgba(245, 199, 84, 0), 0px 0 rgba(245, 199, 84, 0);
  }
  25% {
    box-shadow: 110px 0 #F8333C, 100px 0 #F8333C, 0px 0 rgba(245, 199, 84, 0),
      0px 0 rgba(245, 199, 84, 0);
  }
  36% {
    box-shadow: 120px 0 #F8333C, 110px 0 #F8333C, 100px 0 #F8333C,
      0px 0 rgba(245, 199, 84, 0);
  }
  50% {
    box-shadow: 130px 0 #F8333C, 120px 0 #F8333C, 110px 0 #F8333C,
      100px 0 #F8333C;
  }
  62% {
    box-shadow: 200px 0 rgba(245, 199, 84, 0), 130px 0 #F8333C, 120px 0 #F8333C,
      110px 0 #F8333C;
  }
  75% {
    box-shadow: 200px 0 rgba(245, 199, 84, 0), 200px 0 rgba(245, 199, 84, 0),
      130px 0 #F8333C, 120px 0 #F8333C;
  }
  87% {
    box-shadow: 200px 0 rgba(245, 199, 84, 0), 200px 0 rgba(245, 199, 84, 0),
      200px 0 rgba(245, 199, 84, 0), 130px 0 #F8333C;
  }
  100% {
    box-shadow: 200px 0 rgba(245, 199, 84, 0), 200px 0 rgba(245, 199, 84, 0),
      200px 0 rgba(245, 199, 84, 0), 200px 0 rgba(245, 199, 84, 0);
  }
}