web-gallery-homework

body {
    width: 800px;
    height: 600px;
    margin: 20px auto 0;

    label img {
        width: 128px;
        height: 96px;
    }

    input, input + img {
        display: none;
    }

    input:checked + img {
        display: block;
        width: 640px;
    }
}