html, body, #out {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #0D0F12;
}

.loading {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  color: #F3F4F6;
  font: 16px system-ui, sans-serif;
}