body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

header {
    background: #333;
    color: #FFF;
    padding: 20px 0;
    text-align: center;
}

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

header nav ul li {
    display: inline;
    margin: 0 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
}

section {
    padding: 20px;
    margin: 20px;
    background: #f4f4f4;
    border: 1px solid #ddd;
}

footer {
    text-align: center;
    padding: 10px;
    background: #333;
    color: #FFF;
    
    
}