Image "cover" not working in Firefox / IE

Hi, I have a problem with a gallery of images. They work as expected in Safari and Chrome but not Firefox (I’m running the latest version). They “cover” the div in the first two browsers but not in Firefox, even though the CSS seems to be fully supported.

The client has reported the same problem in IE but at the moment I don’t know what version they are using, so if may not even be possible. However, if I can resolve for Firefox the may solve the problem for IE.

The published site is -

Here is my site Read-Only:

thanks in advance

Set the containing link a “lightbox-link” to display block. That will resolve the FF issue. IE does not support object-fit declarations.

Awesome, thank you for your help :grinning: