As Dale has already pointed out, there's no space between the value and the unit, and you'll have to use decimal points not decimal commas.
As for the missing bullets, they're most likely caused by this line:
Try experimenting with larger values. For example:
Code:
padding-left: 0.5px;
Since empty bullets maybe a bit hard to see on an eInk display, I'd recommend using discs or other symbols instead:
Code:
list-style-type:disc;