Hello,
There's no option to avoid that MS Word behaviour. Line breaks can't be hidden automatically based on content positions.
You could use keepNext (page-break-after CSS) and keepLines (page-break-inside CSS) options to keep contents in the same page, so you could avoid that extra line breaks at the top of a page as the list item and line breaks will always be in the same page. But doing this from HTML could require HTML Extended from Premium licenses.
Regards.