Horizontal menu as on Opigno website

Hi, I just installed Opigno and so far it looks very very promosing. Coming from the Wordpress world, I have no experience with Drupal at all and I can even understand most of this platform. So, so far so good. I was wondering, is it possible to have a horizontal menu in Opigno as on the Opigno website? I think it looks really nice and I would like to offer the same experience to my customers. Thanks, Joost