:root {
    --font-family-sans-serif: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-monospace: Tahoma, Geneva, Verdana, Arial, sans-serif;
}

body {
    font-family: Tahoma, Geneva, Verdana, Arial, sans-serif;
}
.header-navbar, .breadcrumb, h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6, pre, code, kbd, samp {
    font-family: Tahoma, Geneva, Verdana, Arial, sans-serif;
}

    .header-navbar .navbar-container ul.nav li > a.nav-link {
        padding: 1.7em 1rem;
        font-size: 1rem;
    }

select:required:invalid {
    color: gray;
}

option[value=""][disabled] {
    display: none;
}

option {
    color: black;
}
/*.card-body {
    padding-top: 0;
}

.card-header-border {
    padding: 1.5rem 1.5rem 0 1.5rem;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}*/