.gallery__img {
    object-fit: cover;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.5s;
}
.gallery__img:hover {
    transform: scale(1.02);
}
.gallery__img--big {
    height: 400px;
   
}
.gallery__img--small {
    height:200px;
  
}