.container {
    margin-top: 60px;
}

.hidden {
    display: none !important;
}

.nav {
    display: block;
    margin: 0 auto;
    width: 960px;
}

.nav-container {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
}

.nav li {
    color: #fff;
    display: inline-block;
    background-color: #27ae60;
    padding: 10px;
    padding-top: 15px;
    cursor: pointer;
    position: relative;
    left: 0;
    top: -12px;
    float: left;
    margin-right: 15px;
    -webkit-transition: top 0.3s, background-color 0.3s, -webkit-transform 0.3s;
       -moz-transition: top 0.3s, background-color 0.3s, -webkit-transform 0.3s;
        -ms-transition: top 0.3s, background-color 0.3s, -webkit-transform 0.3s;
}

.nav .disabled {
    background-color: #ccc;
}

.nav .disabled:hover {
    top: -12px;
    background-color: #ccc;
}

.nav li:hover {
    top: 0;
    background-color: #1d9650;
}