:root {

}

* {

}

body {

    .content {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;

        #menu {
            background: linear-gradient(#00000060, #00000010);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--bs-border-color-translucent);
            position: fixed;
            width: 100%;
            z-index: 999;
            user-select: none;
        }
    }
}