body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

header {
    background-color: #4CAF50;
    padding: 10px;
    text-align: center;
}

header h1 {
    color: white;
}

nav {
    background-color: #333;
    overflow: hidden;
}

nav a {
    float: left;
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

nav a:hover {
    background-color: #ddd;
    color: black;
}

main {
    padding: 20px;
}

.Imagem {
    width: 200px;
}