body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background: #a7a2a9;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

.foto {
    width: 150px;
    height: 150px;
    border-radius: 70%;
}

main {
    max-width: 900px;
    margin: auto;
}

section {
    background:  #b7b3b9;
    border: 0px solid #ccc;
    padding: 15px;
    margin-bottom: 15px;
}

img {
    max-width: 100%;
}

footer {
    text-align: center;
    font-size: 0.8em;
    margin-top: 30px;
}