html,
body {
  margin: 0;
  width: 100%;
  min-width: 0;
  background: #fef7f0;
}
#ata-mount {
  width: 100%;
  min-width: 0;
}
/* Applies to the loader's host container, never to ATA's cross-origin content. */
* {
  box-sizing: border-box;
}