main .container img:first-child {
    width: 100%;
}

main .container img:nth-child(2) {
    display: block;
    margin: 0 auto;
    position: relative;
    top: -5rem;
    width: 95%;
    max-width: 500px;
}

main .main-block .colorbox {
    margin: 2rem 0;
    padding: 2rem;
}