.nav-tabs .nav-item .nav-link {
    background-color: white;
}

.nav-tabs .nav-item .nav-link.active {
    background-color: #e7e7e7;
}

@media screen and (max-width: 767px) {
    .nav-link>h4 {
        font-size: medium !important;
    }

    #korea-tab {
        padding-bottom: 28px;
    }

    #taiwan-tab {
        padding-bottom: 28px;
    }

    .container>p {
        font-size: medium !important;
    }

    .col {
        padding-left: 50px;
        padding-right: 50px;
    }

    .btn>a {
        font-size: medium !important;
    }

    .container>h1 {
        font-size: x-large !important;
    }

    .container>p {
        font-size: medium !important;
    }

    .card-title {
        font-size: 20px !important;
    }
}