body {
    margin: 0;
    font-family: Georgia, serif;
    background: #fafafa;
    color: #222;
    line-height: 1.8;
}

header {
    text-align: center;
    padding: 60px 20px 40px;
}

h1 {
    font-size: 48px;
    font-weight: normal;
    margin: 0;
}

.subtitulo {
    font-size: 18px;
    color: #666;
    margin-top: 15px;
}

nav {
    text-align: center;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    padding: 15px;
}

nav a {
    text-decoration: none;
    color: #444;
    margin: 0 15px;
}

nav a:hover {
    color: black;
}

main {
    max-width: 650px;
    margin: 0 auto;
    padding: 50px 30px;
}

section {
    margin-bottom: 60px;
}

h2 {
    font-size: 32px;
    font-weight: normal;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
    margin-bottom: 30px;
}

p {
    margin-bottom: 20px;
}

footer {
    text-align: center;
    padding: 30px;
    border-top: 1px solid #ddd;
    color: #777;
    font-size: 14px;
}
.foto-coleccion {

    display: block;

    width: 100%;

    max-width: 900px;

    margin: 40px auto;

    border-radius: 6px;

}