Removing white space under top menu

Hi,

For some reason, I have some extra white space between the top menu (placed at the level of the logo) and the next element on the page. Now, on the homepage, that white space doesn’t exist. But it is present on pages like travelersuniverse[.]com/about and travelersuniverse[.]com/free-course-coming-soon. I’m not really bothered by what happens on post pages. But these above mentioned pages I care a lot for and I would like to get rid of that extra white space. What’s the solution? Thanks!

Laura