body {
    margin: 0;
    font-family: Microsoft JhengHei, Heiti TC, -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    font-weight: normal;
    line-height: 1.5;
    color: #292b2c;
    text-align: left;
    background-color: white;
}

.row {
    margin-left: 0;
    margin-right: 0;
}


/**/

.navbar-nav {
    font-size: 1.1rem;
}

.nav {
    justify-content: center;
}

.nav-tabs {
    border: 0px;
}

.nav-tabs .nav-item {
    width: 36%;
    margin: 0 1%;
}

.nav-tabs .nav-link {
    background-color: #f8f9fa;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.nav-tabs .nav-link:focus,
.nav-tabs .nav-link:hover {
    background-color: #999999;
    color: #efefef;
    transition: all 0.8s;
}

.nav-link {
    font-weight: 600;
}

.nav-tabs .nav-link {
    border: 0px;
}

.nav-tabs .nav-link:focus,
.nav-tabs .nav-link:hover {
    border: 0px;
}

.btn-primary {
    color: #fff;
    background-color: #dc3545;
    border-color: #dc3545;
    font-weight: 800;
}

@media (min-width: 1200px) {
    .container {
        max-width: 1280px;
    }
}


}
@media (max-width: 768px) {
    .nav-tabs .nav-item {
        width: 50%;
        margin: 0;
    }
    
    .nav-link {
        padding: 2px 0;
    }
    
    .nav-link h2 {
        font-size: 1.1rem;
    }
    
    .col-12 {
        padding-left: 0;
        padding-right: 0;
    }
}