header {
    width: 100%;
    height: auto;
    position: relative;
    z-index: 99;
    background: transparent;
}
.navbar-default {
    padding: 0 0 80px 0;
    margin:0;
}
.navbar-nav > li {
    float: left;
    font-size: 18px;
    margin: 34px 17px 0 0;
}
.navbar-default .navbar-nav > li > a {
    color: #146d56;
}
.navbar-default .navbar-nav > li > a:hover {
    color:#999;
}
@media only screen and (max-width: 768px) {
    .navbar-default {
        margin: 0;
    }
    .navbar-header {
        padding: 0 0 17px 0;
    }
    .navbar-collapse {
        margin-top: 52px;
    }
    .navbar-nav > li {
        float: none;
        font-size: 18px;
        margin: 0;
        background: #333;
        border-bottom: 1px solid #666;
    }
}