Board Thread:Support Requests - Designing Your Wiki/@comment-35275294-20200616030510/@comment-26611127-20200616070438

You're not converting anything. Template coding and CSS are two different things and serve different purposes. You need both.

The image you posted shows the coding of the template, which provides the structure of the infobox (i.e. the rows, labels, etc.). Meanwhile, CSS alters the design of the infobox; design refers to border, color, etc.