Display csv design

i have a concern with csv table display.
when I’m in development mode I have photo1 with alternating gray lines, that’s what I want.
when I compile, the gray lines disappear, I have a series of close lines (photo 2)
Thank you for your help

You have not told us, but let us assume you are using this:

Have you uploaded the materialize.min.css file to your media/assets ?

Are you using TaifunTools PathToAssets block?

Is your table.html in the assets ?

The html and css files need to be in the same place/folder