I apologize for the extremely stupid question, but all my attempts were not crowned with success. As I understood, the file /woocommerce/template/single-product/product-image.php is responsible for the images of all the cards . I tried through the selector of a certain product to do this (in the file woocommerce.css):
#blog > div.container.rsrc-container > div.row.rsrc-fullwidth-home > div.rsrc-home > div > div > div > ul > li { background-image: url ('../assets/css/3.gif'); } Tell me the direction, please, I have an idea to insert a .gif image that will be launched only when you hover the mouse (by replacing the static image with the .gif property through the visibility property)