@media (width >= 1250px) {
    #photogrid, #photo, #about, #footer {
        width: 1100px;
    }

    #photogrid a {
        height: 270px;
    }

    #photopop {
        width: 1000px;
    }

    #photo img, #photopop img {
        max-width: 900px;
    }
}

@media (width < 1250px) {
    #photogrid, #photo, #about, #footer {
        width: 900px;
    }

    #photogrid a {
        height: 220px;
    }

    #photopop {
        width: 800px;
    }

    #photo img, #photopop img {
        max-width: 750px;
    }
}

#photopop {
    height: 600px;
    padding: 5px;
    top: 75px;
}

#photo img, #photopop img {
    margin: 45px 0 45px 0;
    max-height: 510px;
}