RobertKirk

/* First you need the main fix which you can get from @ViktorTabori here: https://twitter.com/ViktorTabori/status/1324811596326199303 

This will just fix the collapsed sections in the side bar being vertical once collapsed
(although it's not perfect, and some spacing could probably be changed */

.window-headers:only-child {
  text-orientation: mixed;
  writing-mode: vertical-lr;
}