body.grid-mode {
  height: 100%;
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  align-items: stretch;
  justify-content: center;
}
html:has(body.grid-mode),
body.grid-mode {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.grid {
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}