CSS in Custom Menu

When you go to dashboard/appearance/menus, in the top right corner you have screen options tab. Click on it, and thick CSS Classes checkbox. Now when you click on a small triangle next to menu item (example:home on the right has custom/page/link text and small triangle next to it) you will have option to add class to that menu item. Just add any and style it the way you want.

just add any class you want (no-underline, unclick-link, alcohol-free…) and than in your style.css, where you think it will make sense to you, add that class. For example:
.exit-festival{text-decoration:none}