.container{
    width: 600px;
    margin: 0 auto;
}

.navbar {
    color: #000;
    background-color: #f1f1f1;
    margin: 0;
    padding: 0;
    list-style: none;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
}

.navbar:after {
    content: '';
    display: block;
    clear: both;
}

.navbar li{
    float: left;
    position: relative;
}

.navbar>li {
    float: left;
    position: relative;
}

.navbar li a {
    display: block;
    padding: 8px 16px;
    color: #333;
    text-decoration: none;
}

.navbar li a:hover {
    color: #000;
    background-color: #ccc;
}

.navbar .more {
    color: #000;
    background-color: #fff;
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 160px;
    margin: 0;
    padding: 0;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
}

.navbar>li:hover .more {
    display: block;
}