html,
body {
    height: 100%;
}

.nav-tabs {
    overflow-x: auto;
    overflow-y: hidden;
    display: -webkit-box;
    display: -moz-box;
}

    .nav-tabs > li {
        float: none;
    }

        .nav-tabs > li a.nav-link.active {
            border-bottom: 3px #007bff solid;
        }