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

header {
    padding: 8px 20px;
    background-color: #f8f9fa;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    line-height: 1;
}

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

nav a {
    text-decoration: none;
    color: #0066cc;
}

nav a:hover {
    text-decoration: underline;
}

hr {
    border: none;
    height: 1px;
    background-color: #ccc;
    width: 100%;
    margin: 0;
}

.content {
    padding: 20px;
}