:root {
    --sat: env(safe-area-inset-top);
    --sar: env(safe-area-inset-right);
    --sab: env(safe-area-inset-bottom);
    --sal: env(safe-area-inset-left);
}

#instant-app {
    position: fixed;
    width:100%;
    border: none;
    top:0;
    left:0;
    padding: 0;
    margin:0
  }