img.pic_thumbnails {
    width: 150px;
    height: 150px;
}
img.large {
    width: 260px;
    height: 260px;
}
img.extralarge {
    width: auto;
    height: auto;
}


/*img.pic_thumbnails {
    width: 160px;
    height: 120px;
}
img.large {
    width: 320px;
    height: 240px;
}
img.extralarge {
    width: 640px;
    height: 480px;
}*/