#photog {
    width: 100%;
    margin: 0 auto;
}

#photog .insta div.centerBlock {
    clear: both;
}

#photog img {
    width: 12.5%;
    float: left;
}

#photog .sideBlock {
    width: 25%;
    float: left;
}

#photog .sideBlock img {
/*width: 100%;*/
    width: 50%;
}

#photog img.centerVisual {
    width: 50%;
    float: left;
}

#photog .pcnone {
    display: none;
}

#photog .spnone {
    display: inherit;
}

@media screen and (max-width: 640px) {
    #photog .topVisual {
        width: 100%;
        height: auto;
        background-color: aqua;
    }

    #photog {
        width: 100%;
    }

    #photog img {
        width: 50%;
        float: left;
    }

    #photog .spnone {
        display: none;
    }

    #photog .pcnone {
        display: inherit;
    }

    #photog .sideBlock {
        width: 100%;
        float: left;
    }

    #photog .sideBlock img {
        width: 50%;
        float: left;
    }
}