ul.photo {
    margin: 0;
    padding: 0;
    text-align: center;
    list-style-type: none;
}

ul.photo li.heading {
    font-family: Arial, sans-serif;
    font-size: 2em;
    font-weight: bold;
    display:block;
    text-align: center;
    margin: 1em 0 0 0;
}

ul.photo li.picture {
    display: block;
    text-align: center;
}

ul.photo li.picture img {
    display: block;
    text-align: center;
    border: 1px black solid;
}

ul.photo li.caption {
    font-size: 1em;
    font-weight: bold;
    display: block;
    text-align: center;
}

ul.photo li {
    font-size: 1em;
    display: block;
    text-align: center;
}