body {
  height: 100%;
}

html {
  height: 100%;
}

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

.spinner {
  font-size: 10px;
  height: 40px;
  margin: 100px auto;
  text-align: center;
  width: 50px;
}

.spinner > div {
  animation: sk-stretchdelay 1.2s infinite ease-in-out;
  background-color: #333;
  display: inline-block;
  height: 100%;
  width: 6px;
}

.spinner .rect2 {
  animation-delay: -1.1s;
}

.spinner .rect3 {
  animation-delay: -1s;
}

.spinner .rect4 {
  animation-delay: -0.9s;
}

.spinner .rect5 {
  animation-delay: -0.8s;
}

@keyframes sk-stretchdelay {
  0%,
  40%,
  100% {
    transform: scaleY(0.4);
  }

  20% {
    transform: scaleY(1);
  }
}

@keyframes sk-stretchdelay {
  0%,
  40%,
  100% {
    transform: scaleY(0.4);
    transform: scaleY(0.4);
  }

  20% {
    transform: scaleY(1);
    transform: scaleY(1);
  }
}