How to organise children menu links as tabs in D7? I'm using Drupal 7 and now I have a regular dropdown menu like this:

Link 1


sub-link 1
sub-link 2


Link 2

But I would like to organize my sub-links as tabs where sub-link 1 and sub-link 2 would  be a content tabs that contain a block content. I tried to use OM Maximenu Modul, it helps to organise parent links as tabs but not sub-links. Could anybody help me in this question?
Instead of OM Maximenu module I used Views Menu module as it easier and I used it only with purpose to attach views block to only one menu link.