body {
    background-color: #F3F3F3;
    font-size: 115%;
}

.container {
    background-color: #FFF;
}

.header {
    background: #bdc3c7; /* fallback for old browsers */
    background: linear-gradient(to right, #2c3e50, #abc8cd); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

.header a {
    color: white;
}

nav.navbar {
    background-color: #F90;
}


nav li.nav-item:hover {
    background-color: #e57e00;
}


nav a.nav-link, nav a.nav-link:hover {
    color: white;
    font-weight: bold;
}

.content h2 {
    font-weight: bolder;
}

.btn-next-joke {
    background: #F90;
    color: white;
    font-weight: bold;
}

.js-hidden {
    display: none;
}