:root {
    --img_ratio2046: 1/1; 
}

#s13{
    aspect-ratio: var(--img_ratio2046);
}

.img2046{
    background-image: url(../../img/2046.jpg);
    aspect-ratio: var(--img_ratio2046);
}

/*----- MOBILE -----*/
@media only screen and (max-aspect-ratio: 1/1){
    .img2046{
    }
}