
Assuming mouseout is required, the following result was found.
sites saying that you can apply a transparency and then capture special mouse events to emulate the mouseover and mouseout effects of a button with an image as a background. I couldn't get any of these working and they looked more confusing then...

bc1qf6elrdxc968h0k673l2djc9wrpazhqtxw8qqp4
0xb038962F3809b425D661EF5D22294Cf45E02FebF