There is a slider, bottom-hover-panel blocks, with a group of 5 shades. When guidance appears dice is deployed 5 shades. The block groups are arranged in several rows, if one row is greater than 12 groups.·
On hover on the block with a group of colors should line up and stick together in one picture like this:·
Hover on a single shade you see only one picture:
Question: what is the easiest way to implement it? how to organize pictures ?