body{
    background: darkred;
}

.div-1{
    padding: 10px;
    border: ;
    display: flex;
    min-width: 200px;
    background: #212529;
}

.img-1{
    display: flex;
}

section{
    display: flex;
    min-width: 200px;
    height: 550px;
}

section img{
    width: 0px;
    flex-grow: 1;
    object-fit: cover;
    opacity: .8;
    transition: .5s ease;
}

section img:hover{
    cursor: crosshair;
    width: 300px;
    opacity: 1;
    filter: contrast(120%);
}