In safari the Mansonry Media Grid is invisible.
The grid is invisible but clicking and or press a finger in the empty space where the grid should be triggers the lightbox. If clicked or fingerpressed the closebutton in the lightbox the empty space appears again and the grid is not shown.
This isue appears on my Mac, Ipad Air and Iphone6. But if i use p.e. chrome on my mac the grid appears as designed and works fine. So it must be safari that causes the problem.
Maybe i have to change a setting in safari, anyone please?

Regards Leo