.loader-container {
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader {
  width: 16px;
  height: 16px;
  position: relative;
  left: -32px;
  border-radius: 50%;
  color: #dadada;
  background: currentColor;
  box-shadow: 32px 0, -32px 0, 64px 0;
}

.loader {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: block;
  margin: 15px auto;
  position: relative;
  background: #dadada;
  box-shadow: -24px 0 #dadada, 24px 0 #dadada;
  box-sizing: border-box;
  animation: shadowPulse 2s linear infinite;
}

@keyframes shadowPulse {
  33% {
    background: #dadada;
    box-shadow: -24px 0 #fa6420, 24px 0 #dadada;
  }

  66% {
    background: #fa6420;
    box-shadow: -24px 0 #dadada, 24px 0 #dadada;
  }

  100% {
    background: #dadada;
    box-shadow: -24px 0 #dadada, 24px 0 #fa6420;
  }
}