Comments from the answer you cite:
But that messes up the line height of my content. – Geoist yesterday
@Geoist This answers the OP's question. You should ask a new question since you seem to have different requirements. – melhosseiny yesterday
Thanks for the suggestion, but I'm intelligent enough to solve my own problems. The comment is only for the consideration of future users who are less experienced and wondering why the solution isn't working for them. – Geoist 18 mins ago
Geoist, the difference between the two scenarios is that you say "this messes up the line height of my content." The way you said it makes it sound like you're another user with a similar but different problem, which oftentimes happens to new users that don't yet understand that comments and answers are not intended to ask new questions.
Perhaps this answer doesn't mess up the op's line height and is a solid answer for that particular problem, but you're implying that it messes up yours.
In this case, it sounds like the answer answered the op's question, and I suspect the other user was suggesting you ask a new question because he/she thought you were confused.
Consider a comment along these lines:
One thing to be careful of is that this doesn't mess up your line height. It might work in this specific case, but it might not solve every problem.
In conclusion, polite, constructive comments that help improve an answer or question are always encouraged. Hope this helps!