@media (max-width:768px) {
    nav.main-header {
        display: none;
    }
    nav.main-header.second-header {
        display: flex;
    }
    .nav-footer {
        display: none !important;
    }
    .form-footer {
        position: fixed;
        bottom: 0;
        width: 100%;
        left: 0;
        padding: 0.5rem;
        background: #fff;
        box-shadow: 0 0 1px rgba(0,0,0,.15);
    }
}