Vertical spacing between modules - how do I remove?

Good day -

I am using MusicState and J3.0. I am stacking 2 modules across 100% off the page in the bottom1, bottom2, bottom3, bottom4 and bottom5 modules positions.

I have an issue need to solve. There is margin/padding/spacing between the my stacked in these positions. Please see attached image for illustration.

I'd like to add some code to my override.css to remove this. What code do I need to add?

I have tried to identify the required code using Firebug but haven't been able to work out what to change.

(Cyberek if you read this, you can see live site at details I sent you).

Thanks

Are the modules already in the form they should finally be?

Yes, I've just made a couple of updates - but essentially they are.

I have checked your site but can't find any issue - could you please post a screenshot and mark the spacing as it is missing in 1rst post?