.container
{
    margin: 0 auto;
}
nav
{
    background: #2c3e50;
}
nav ul
{
    margin-left: -8px;
}
nav ul li
{
    background: #2c3e50;
    position: relative;
    list-style: none;
    display: inline-block;
}
nav ul li a
{
    display: block;
    padding: 0 15px;
    color: white;
    text-decoration: none;
    line-height: 25px;
    font-size: 20px;
}
nav ul ul
{
    position: absolute;
    top: 60px;
    display: none;
}

nav ul li:hover > ul
{
    display: block;
}
nav ul ul li
{
    width: 150px;
    float: none;
    display: list-item;
    position: relative;
}
nav ul ul li a
{
    font-size: 15px;
}