image rollovers

Hi,

I want to make rollover images when hovering and this works with a solution I found in this topic: https://en.forums.wordpress.com/topic/image-rollovers-in-wordpresscom?replies=8#post-528530

But now I would like the 3 images I use with rollover and link to gallery to be seen next to each other. The page where you find the problem is here: https://www.jannacums.be/WPAG002/info/
So first you see there 3 images with rollover effect, and then you see 3 images without rollover but like I would want to see the 3 images with rollover.
Can someone help me with this please? Thanks in advance!

Steven