how to add an horizontal line to my header

Can you please put your URL here?

find the html element that is the header and add a bottom border to it.

didn’t really understand what i’m supposed to do, i need details

anyone with a solution?

post it here https://www.ads-software.com/support/forum/themes-and-templates as it’s a styling question. also tell them what theme you’re using and put a link to your site so they can see what you mean. the more information you give the better the help you can get…