body header .right nav ul li a {
    text-decoration: none;
}




@media (max-width: 1420px) {
    body header .right #nav_btn {
        display: block;
        background: none;
        border: none;
        cursor: pointer;
    }

    body header .right #nav_btn img {
        width: 30px;
        height: 30px;
    }
}

@media (min-width: 1421px) {
    body header .right #nav_btn {
        display: none;
    }
}