body {
    width: 100%;
    height: 100%;

    background-color: #d3d3d3;
    background-image:  linear-gradient(30deg, #e8e8e8 12%, transparent 12.5%, transparent 87%, #e8e8e8 87.5%, #e8e8e8), linear-gradient(150deg, #e8e8e8 12%, transparent 12.5%, transparent 87%, #e8e8e8 87.5%, #e8e8e8), linear-gradient(30deg, #e8e8e8 12%, transparent 12.5%, transparent 87%, #e8e8e8 87.5%, #e8e8e8), linear-gradient(150deg, #e8e8e8 12%, transparent 12.5%, transparent 87%, #e8e8e8 87.5%, #e8e8e8), linear-gradient(60deg, #e8e8e877 25%, transparent 25.5%, transparent 75%, #e8e8e877 75%, #e8e8e877), linear-gradient(60deg, #e8e8e877 25%, transparent 25.5%, transparent 75%, #e8e8e877 75%, #e8e8e877);
    background-size: 26px 46px;
    background-position: 0 0, 0 0, 13px 23px, 13px 23px, 0 0, 13px 23px;
}

main {
    width: 100%;
    height: 100%;
}