#background{
    position: fixed;
    display: grid;
    grid-auto-flow: column;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}
#background::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    z-index: -1;
    /* background-image: linear-gradient(150deg, #000000, #000000, #000000); */
    /* opacity: 0.25; */
}
.background_item{
    aspect-ratio: 1/3.5;
    /* border: 1px solid #ff0101; */
    background: url(../../public_html/img/background_img.png);
    background-size: 100% auto ;
    opacity: 0.55;
}
._background_item_2,
._background_item_7,
._background_item_12,
._background_item_17,
._background_item_22,
._background_item_27{
    background-position: 0 60vh;
}
._background_item_3,
._background_item_8,
._background_item_13,
._background_item_18,
._background_item_23,
._background_item_28{
    background-position: 0 10vh;
}
._background_item_4,
._background_item_9,
._background_item_14,
._background_item_19,
._background_item_24,
._background_item_29{
    background-position: 0 -30vh;
}
._background_item_5,
._background_item_10,
._background_item_15,
._background_item_20,
._background_item_25,
._background_item_30{
    background-position: 0 50vh;
}
._background_item_6,
._background_item_11,
._background_item_16,
._background_item_21,
._background_item_26,
._background_item_31{
    background-position: 0 0vh;
}