/* Reset some default browser styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Style the header and navigation menu */
header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
}

.menu {
    list-style: none;
}

.menu li {
    display: inline;
    margin: 0 20px;
}

.menu li a {
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    transition: color 0.3s;
}

.menu li a:hover {
    color: #ff9900;
}

/* Style the mobile navigation here */