#flickrDemo, #flickrDemo li
{
    list-style-type: none;
    padding: 0;
    margin: 0;
    border: 0;
}

#flickrDemo
{
    margin: 18px 0px;
}

#flickrDemo li
{
    float: left;
}

#flickrDemo li.portrait
{
    margin: 18px 58px;
}

#flickrDemo li.landscape
{
    margin: 58px 18px;
}