Grid-Style Portfolio Hyperlinks

Thanks in advance for all of your help!

I’m currently working on revising a site (not the one associated with this account) that uses a grid-style portfolio on one of the pages as a sort of sub-category menu. When you hover over a tile, a transparent gray overlay containing a short description appears over the tile.

While it technically functions fine, the actual link only technically exists on the text in the overlay. This is not very intuitive, in my opinion, because of the way the appearance changes when the cursor hovers.

Is there a way to edit this so that the entire tile becomes a hyperlink instead of the text in the center?

Thank yoU!