BootstrapAdmin/Bootstrap.Client/wwwroot/css/site-responsive.css

@media (min-width: 375px) {
    .toolbar .dropdown-menu a {
        padding: 0 20px;
    }

        .toolbar .dropdown-menu a:first-child {
            border-left: none;
        }
}

@media (min-width: 568px) {
    .sidebar-toggle-box span {
        display: inline;
    }

    .toolbar {
        display: none;
    }

    .bs-bars {
        display: inline-block;
    }
}

@media (min-width: 576px) {
    .btn-fill {
        width: auto;
    }
}

@media (min-width: 667px) {
    .header .nav {
        display: flex;
    }
}

@media (min-width: 768px) {
    .sidebar-toggle-box {
        flex: 0 1 auto;
    }

    .header .nav {
        flex: 1 1 auto;
    }

    .sidebar-open aside {
        transform: translate(-100%);
    }

    .sidebar-open .site-footer {
        display: flex;
    }

    .breadcrumb {
        border-color: #ddd;
    }
}