html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  touch-action: manipulation;
}

body {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background: #909090;
}

canvas {
  margin-right: auto;
  margin-left: auto;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.centered {
  margin-right: auto;
  margin-left: auto;
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #f0f0f0;
  font-size: 24px;
  font-family: Ubuntu-Light, Helvetica, sans-serif;
  text-align: center;
}

/* ---------------------------------------------- */
/* Loading animation from https://loading.io/css/ */
.lds-dual-ring {
  display: inline-block;
  width: 24px;
  height: 24px;
}

.lds-dual-ring:after {
  content: " ";
  display: block;
  width: 24px;
  height: 24px;
  margin: 0;
  border-radius: 50%;
  border-color: #fff transparent #fff transparent;
  animation: lds-dual-ring 1.2s linear infinite;
}

@keyframes lds-dual-ring {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@media (prefers-color-scheme: dark) {
  body {
    background: #404040;
  }
}