body{
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}
header, main, footer {
    padding: 20px;
}

header {
    background-color: #f2f2f2;
}

header h1 {
    margin-bottom: 10px;
}
nav a {
    margin-right: 10px;
    text-decoration: none;
    color: #0066cc;
}
nav a:hover {
    text-decoration: underline;
}
section {
    margin-bottom: 30px;
}
section h2 {
    margin-bottom: 10px;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin-top: 15px;
}
footer {
    background-color: #f2f2f2;
    text-align: center;
    font-size: 14px;
}