text-orientation

/* Usage Example */
.vertical-labels {
  writing-mode: vertical-rl;
  /* Forces characters to stay upright instead of rotating on their sides */
  text-orientation: upright;
}

/* Syntax */
text-orientation: mixed;
text-orientation: upright;
text-orientation: sideways;

/* Global values */
text-orientation: inherit;
text-orientation: initial;
text-orientation: revert;
text-orientation: revert-layer;
text-orientation: unset;