html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    background-color: #F5F5F5;
    /*overflow: hidden;*/
}

ul {
    list-style: none;
}

@media only screen and (max-width: 768px) {
    html,
    body
    {
        overflow: visible;
    }
}