Currently, when hiding images, hovering the covers on the website make a line appears bellow the image moving the selection make a 1 text height line box appears on the bottom of the image.
The correction for that is to have the tag a surrounding the image styled with:
display:block;
It can be done with modern (2023) css with:
a:has(img){display:block;}
The compatible alternative is to tag those link with a class. and targeting those a with a class selector in css.