It is very difficult to see what may be the issue as the site renders OK for me herehttp://dinonlineavis.dk/. The only thing that jumps out is that you have used lots of separate 'Masonry' style page lists on the one page even on the same row... this could potentially be one of your problems.

The whole point of the Masonry Page list view is to display multiple pages within one block, not how you have used it as separate blocks. The Masonry script tries to fit all of the blocks together without leaving any space vertically - I assume it is getting confused with the way you have set the page up... you would be best using a different page list custom template.