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

header, footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 5px;
}

nav {
    border-bottom: 2px solid #ccc; /* Add a solid line under the navigation menu */
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 5px;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav ul li a {
    color: #333;
    text-decoration: underline;
}

main {
	padding: 0px;
	margin: 10px;
}