body {
    background-color: black;
    color: orange;
    font-family: "Courier New", monospace;
    margin: 0;
    padding: 0;
}

header {
    background-color: darkorange;
    color: black;
    text-align: center;
    padding: 20px;
    border-bottom: 4px solid orange;
}

.volver {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 15px;
    background-color: black;
    color: orange;
    text-decoration: none;
    border: 2px solid orange;
    font-weight: bold;
}

.volver:hover {
    background-color: orange;
    color: black;
}

#contenedor {
    padding: 20px;
}

.tarjeta {
    border: 2px solid orange;
    margin-bottom: 20px;
    padding: 15px;
    background-color: #111;
}

.tarjeta img {
    width: 200px;
    display: block;
    margin-bottom: 10px;
}

.tarjeta a {
    color: yellow;
    text-decoration: underline;
}