Boxes not aligning

Hi,

We have some slidables at the top of our homepage (see link below).

https://obwiz.co.uk/Larkmead2014v2/

The first slidables which sit under the About Us heading are fine but when you click on the ones underneath (What’s Happening, Inside the Classroom etc) the boxes to the right aren’t sitting in line with the top of the navigation boxes (top of the About Us box).

We’ve checked the code and it is correct so can’t see why it isn’t sitting in line :(

Thanks
Kalinda