How to make equal line spacing?

Question

css

Good afternoon!

I am outputting text to PDF using PHP (the user enters data and all this comes to the mail). So, in a PDF file, when transferring text to a new line, the line spacing between the first and second lines does not work (the first and second terms have some kind of interval, and only after the second the one that I set through line-height works), below 2, 3, 4 and so on works as given. What could be the problem in this case?

Answer 1

Not in PDF for sure. In PDF, in principle, there are no line spacing.
See what you have in the HTML from which this PDF is made.
Or maybe some nuances of the library you are doing this with.