natural-sidenav-container {
    .mat-drawer {
        border-right: none;
    }

    mat-sidenav.mode-side {
        .mat-drawer-inner-container {
            display: flex;
            flex-direction: column;
        }

        natural-sidenav {
            display: flex;
            flex: 1;
            min-height: 0;
        }
    }

    mat-sidenav-content {
        display: flex !important;

        & > div {
            display: flex;
            flex: 1;

            natural-sidenav-content {
                display: flex;
                flex: 1;
            }
        }
    }
}