.nav-menu {
    height: 105px;
    background-color: #171717;
    color: #fff;
    display: flex;
    align-items: center;
    font-size: 20px;
    box-shadow: 0 2px 10px #373737;
}

.responsive-menu {
    display: flex;
    height: auto;
    width: 100%;
    align-items: center;
}

.hamburger {
    padding: 10px 0 10px 0;
    display: flex;
    justify-content: center;
}

@media screen and (max-width: 991px) {
    .nav-menu {
        height: auto;
    }
}