python-gallery/gallery/user/themes/default/ui/main.scss

main {
    margin: 0;
    padding: 0;

    background-color: $black100;
    color: $white100;

    min-height: 100vh;

    overflow-y: auto;
    box-sizing: border-box;

    header {
        margin: 0;
        padding: 0;

        width: 100%;
        height: 69vh;

        position: fixed;
        top: 0;
        left: 0;

        background-color: $black200;
        border-radius: $rad;

        box-sizing: border-box;

        img {
            position: absolute;
            top: 0;
            left: 0;

            width: 100%;
            height: 100%;

            object-fit: cover;
            object-position: center 0px;
        }

        span {
            position: absolute;
            top: 0;
            left: 0;

            width: 100%;
            height: 100%;

            background-image: linear-gradient(to bottom, #00000000, rgba($black100, 1));
            backdrop-filter: blur(1rem);

            z-index: +1;
        }
    }
}