Meta Post - Common CSS Hacks

Maybe I misunderstand you, but the normal step to create a checkbox:

  1. type -, then space;
  2. type [, then space, then ], then space again;
  3. still on the same line type a text for the checkbox.

Now, to place a checkmark, click once on the checkbox when in Preview. This is the normal step when one encounters a checkbox on a webpage.

That’s all there is to it, and it is intuitive. TBH, I don’t find your procedure intuitive.