html, body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    min-height: 100%;
    font-family: 'Amatic SC', cursive;

}

body {
    background-image: url('game_bg.jpg');
    background-position: center;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    background-attachment: fixed;
    font-weight: bold;
    width: 100%;
}

main {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

    main a {
        width: 270px;
        height: 152px;
        position: relative;
        border: 5px solid white;
        transition: 0.4s;
        background-position: center;
        background-size: cover;
        margin: 16px;
        font-size: 30px;
        color: #b12525;

    }

        main a:hover {
            border-color: #b12525;
        }

        main a span {
            background: white;
            text-align: center;
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            display: block;
        }


.kolorowanka {
    background-image: url('assets/kolorowanka_thumb.jpg');
}

.memo {
    background-image: url('assets/memo_thumb.jpg');
}

.segregacja {
    background-image: url('assets/segregacja_thumb.jpg');
}

.sudoku {
    background-image: url('assets/sudoku_thumb.jpg');
}

.akcja {
    background-image: url('assets/akcja_thumb.jpg');
}