main > section > img {
    width: 100%; 
    align-self: center;
}

main section:nth-of-type(2), main section:nth-of-type(3) {
    opacity: 50%;
    mix-blend-mode: difference;
}

@media screen and (min-width: 70.25rem){

main section:nth-of-type(1) {
    order: 2
}

main section:nth-of-type(2) {
    order: 1;
}

main section:nth-of-type(3) {
    order: 3;
}
}