html,
body {
  margin: 0;
  padding: 0;
}
body.dark {
  background-color: #333538;
}

body.light {
  background-color: #ececec;
}

div#a3_loadingScreen {
  width: 100vw;
  height: 100vh;
  background-color: transparent;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

div#a3_loader {
  box-sizing: content-box;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  position: relative;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-animation: a3_spin 1.1s infinite linear;
  animation: a3_spin 1.1s infinite linear;
}

body.dark div#a3_loader {
  border: 6px solid rgba(255, 255, 255, 0.2);
  border-left-color: #ececec;
}
body.light div#a3_loader {
  border: 6px solid rgba(0, 0, 0, 0.2);
  border-left-color: #333538;
}

@-webkit-keyframes a3_spin {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes a3_spin {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}