body {
    margin: 0;
    font-family: Arial, sans-serif;
}

.navbar {
    background-color: #333;
    overflow: hidden;
    padding: 15px;
}

.navbar a {
    float: left;
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

.menu-icon {
    display: none;
    cursor: pointer;
}

@media only screen and (max-width: 768px) {
    .navbar a {
        display: none;
    }

    .menu-icon {
        display: block;
    }

    .menu-items {
        display: none;
    }

    .menu-items.show {
        display: block;
    }
}