:root {
    --img_ratio2351: 4/3; 
}

#s10{
    aspect-ratio: var(--img_ratio2351);
}

.img2351{
    background-image: url(../../img/2351_43.jpg);
    aspect-ratio: var(--img_ratio2351);
}

/*----- MOBILE -----*/
@media only screen and (max-aspect-ratio: 1/1){
    .img2351{
    }
}