body {
    background-color: #f5f3ee;
}

.main_content > figure {
    width: calc(100% - 16px);
}

.main_content > figure:last-child > img {
    width: 100%;
}

@media screen and (min-width: 430px) {

    .main_content > figure:last-child > img {
        width: 200px;
    }

}