[Virtue Premium] Make the sticky header only work for the top bar

I was wondering if it is possible to make the sticky header only use the topbar and not the whole header area including the logo. I found a topic and used the code, it almost worked but it made the logo slide a little beneath the topbar rather than it sliding the whole way under. If that makes sense.
This is the forum I used the code from https://wordpress.org/support/topic/sticky-top-barmenu?replies=9

My site is http://assureinvest.com.au/

Thanks!