body::before {
            content: '';
            position: fixed;
            top: 0px;
            left: 0px;
            right: 5px;
            bottom: 0px;
            border: 0px solid var(--border-color);
            border-radius: 15px;
            box-shadow: 0 4px 10px var(--shadow-color);
            z-index: 0;
        }