I bought a PHP script from Codecanyon. The link to the script is (https://preview.codecanyon.net/item/atoz-seo-tools-search-engine-optimization-tools/full_screen_preview/12170678). A dash appears at the top while I’m on the header’s menu. I am trying to change it using text-decoration but it is not working. When I hover over the menu it shows a blue-colored dash on it. How do I remove it? I used it