I have several bulleted product points listed in the short description of the product details. I would like to separate some of the points with a blank line. How can I create a blank line?
If by blank line you mean space you can just add a margin to the element. Like that:
element { margin: 0 0 10px; }
If you mean a distinguishable line, you can try adding a border at the top or bottom of each element and distance the border with padding. Something like that: