.gallery.content
{
    transform-style: preserve-3d;
}

.gallery .page
{
    display: inline-block;
    text-align: justify;
    transform-style: preserve-3d;
}

.gallery.thumb
{
    position: relative;
    display: inline-block;
    background-repeat: no-repeat;
    background-size: 100%;
    background-position: center center;
    background-clip: content-box;
    vertical-align: top;
/*    transform: perspective(1000px) translateZ(0px);
    transition: transform 0.2s;*/
    transition: background-size 0.2s;
}

.gallery.thumb:hover
{
/*    transform: perspective(1000px) translateZ(100px);*/
    background-size: 110%;
}

.gallery.image_viewer
{
/*    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: #000;*/
    opacity: 0;
    /*transition: opacity 1s ease-in-out;*/
}

.gallery.image_viewer.active
{
    opacity: 1;
/*    z-index: 2;*/
}