body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: orange;
}

.nav ul {
    list-style: none;
}

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

.nav a {
    text-decoration: none;
    color: #fff;
    font-weight: bold;
}

.main-content {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: orange;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}