body {
  margin: 0;
}

.fs-loading {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background-color: #111;
  opacity: 0.7;
  z-index: 1000;
}

.fs-loading::after {
  content: '';
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  margin: -25px 0 0 -25px;
  width: 50px;
  height: 50px;
  border-left: 3px solid #e91c27;
  border-top: 3px solid #e91c27;
  -webkit-border-radius: 50%;
  border-radius: 50%;
  -webkit-animation: rotate360 1.5s infinite;
  animation: rotate360 1.5s infinite linear;
  z-index: 1000;
}

@-webkit-keyframes rotate360 {
  0% {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
  }
  100% {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
  }
}

@keyframes rotate360 {
  0% {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
  }
  100% {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
  }
}