@keyframes rotate {
  0% {
    transform: rotateZ(0deg);
  }
  100% {
    transform: rotateZ(360deg);
  }
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: Roboto, 'Helvetica Neue', sans-serif;
  margin: 0px;
}
.splash-screen {
  background: #37474f;
  width: 100%;
  height: 100%;
}
.splash-loader {
  position: absolute;
  left: 50%;
  top: 50%;
  margin: -60px 0 0 -60px;
  width: 100px;
  height: 100px;
  border-radius: 100%;
  background-color: #37474f;
  border: 10px solid #37474f;
}
.splash-screen .splash-loader img {
  width: 100px;
  position: relative;
  top: 14%;
  margin-right: auto;
  margin-left: auto;
}
.splash-screen .splash-loader:after {
  content: '';
  background: transparent;
  width: 140%;
  height: 140%;
  position: absolute;
  border-radius: 100%;
  top: -20%;
  left: -20%;
  opacity: 0.7;
  box-shadow: rgba(255, 255, 255, 0.6) -4px -5px 3px -3px;
  animation: rotate 1s infinite linear;
}