.loaderSimpleContainer {
  background: rgba(0, 0, 0, .6);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  align-items: center;
  justify-content: center;
  display: flex;
  visibility: hidden;
  opacity: 0;
  z-index: 9999;
  transition: 0.5s;
}

.loaderSimpleContainer.activeLoaderSimple {
  visibility: visible;
  opacity: 1;
}

.loaderSimple {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  border: 3px solid;
  border-color: #FFF #FFF transparent;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
}

.loaderSimple::after {
  content: '';
  box-sizing: border-box;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  border: 3px solid;
  border-color: transparent #4181f7 #4181f7;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  animation: rotationBack 0.5s linear infinite;
  transform-origin: center center;
}

@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes rotationBack {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(-360deg);
  }
}