xygt/app/static/css/style.css

body {
    background-color: #000;
    color: #fff;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
}

.nav-item {
    display: inline;
    margin: 0 10px;
}

a {
    color: #fff;
    text-decoration: underline;
}

a:hover {
    color: #fff;
    text-decoration: double underline;
}