.iframephotogalleryhoriz{width: 830px;height: 610px;border: none;padding: 0px;}
.photogalleryhoriz{width: 800px;height: 600px;margin-bottom: 20px;}
.photogalleryvert{width: 600px;height: 800px;margin-bottom: 20px;}

@media only screen and (max-width: 800px)
{
    .iframephotogalleryhoriz{width: 630px;height: 460px;}
    .photogalleryhoriz{width: 600px;height: 450px;}
    .photogalleryvert{width: 450px;height: 600px;}
}

@media only screen and (max-width: 600px)
{
    .iframephotogalleryhoriz{width: 430px;height: 310px;}
    .photogalleryhoriz{width: 400px;height: 300px;}
    .photogalleryvert{width: 300px;height: 400px;}
}

@media only screen and (max-width: 400px)
{
    .iframephotogalleryhoriz{width: 330px;height: 235px;}
    .photogalleryhoriz{width: 300px;height: 225;}
    .photogalleryvert{width: 225px;height: 300px;}
}