Apply css for custom Design

Hi I am using the Default minimal theme now, i want to remove the underline in the links and keep just the highlight colour, How to remove underline in links? the link seem to talk about the problem partially, but when I add this code in the snippets folder nothing happens, may I know where should we include the code that is shown here?

Once you are sure your CSS snippets are working, you can go from there:

body {
    --link-decoration: none;
    --link-decoration-hover: none;

removes the underline for [[wikilinks]] in the Minimal theme. :slightly_smiling_face: