FONT CHANGED AFTER ADDING MEGA MENU

hi all , I added a custom font on my shopify store, it works perfectly. as soon as I added a dropdown menu on two off the headings the font changed on those two exact headers. I cant seem too get it back too the font I want I’ve added h1,h2,h3,h4,h5,h6,body,p,a code in base.css am I missing something. the drop down menu itself has the font the category doesn’t.