Work Gallery Thumnails

I need to build a thumbnail gallery of my work, but running into two issues:

1- building it with columns assign the same target video to thumbnails stacked on the same column
2- i tried building the thumbnail inside a div tag so that I can animate the text upon hover, but not only is it pushing the thumbnail down, but it will remain “on” even after leaving the hover.

Apologies in advance if this is basic, but I am just starting with webflow.