#sbox-window{
    -webkit-perspective: 1300px;
    -moz-perspective: 1300px;
    -o-perspective: 1300px;
    perspective: 1300px;
}

#sbox-content{
    -webkit-transition: -webkit-transform 0.3s;
    -moz-transition: -moz-transform 0.3s;
    -o-transition: -o-transform 0.3s;
    transition: transform 0.3s;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    -o-transform-style: preserve-3d;
    transform-style: preserve-3d;
    -webkit-transform-origin: center center;
    -moz-transform-origin: center center;
    -o-transform-origin: center center;
    transform-origin: center center;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    -ms-transform: rotateX(-90deg);
    transform: rotateX(-90deg);
    
}
#sbox-window #sbox-btn-close{
    display: none;
}
#sbox-content.flipped{
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    -ms-transform: rotateX(0deg);
    transform: rotateX(0deg);
}
#sbox-window.windowOpened #sbox-btn-close{
    display: block;
}
#sbox-content iframe{
    display: block;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    -o-backface-visibility: hidden;
    backface-visibility: hidden;
}