/* Base styles */
nav {
    background-color: #f0f0f0;
    padding: 1rem;
    /* Using rem for better responsiveness */
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* List items */
nav li {
    display: inline-block;
    margin-right: 1.5rem;
    /* Using rem for spacing */
}

nav li a {
    display: block;
    padding: 1rem 1.25rem;
    /* Using rem for padding */
    text-decoration: none;
    color: #333;
}

/* Dropdown menu */
nav ul ul {
    position: absolute;
    display: none;
    background-color: #fff;
    box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
}

nav li:hover ul {
    display: block;
}

nav ul ul li {
    padding: 0.5rem 1rem;
    /* Using rem for padding */
}

nav ul ul li a {
    color: #000;
}