.flip {
    backface-visibility:             hidden;
        -moz-backface-visibility:    hidden;
        -ms-backface-visibility:     hidden;
        -o-backface-visibility:      hidden;
        -webkit-backface-visibility: hidden;
	position : absolute;
    transform-origin:             50% 50% 0px;
        -moz-transform-origin:    50% 50% 0px;
        -ms-transform-origin:     50% 50% 0px;
        -o-transform-origin:      50% 50% 0px;
        -webkit-transform-origin: 50% 50% 0px;
    transition: all 0.5s;
        -moz-transition:    all 0.5s;
        -ms-transition:     all 0.5s;
        -o-transition:      all 0.5s;
        -webkit-transition: all 0.5s;
	cursor: pointer;
	-ms-user-select: none; 
	-moz-user-select: 
	-moz-none; 
	-webkit-user-select: none;
	-khtml-user-select: none; 
	user-select:none;
}

div[id$="1"] {
    transform:             rotateY( 0deg );
        -moz-transform:    rotateY( 0deg );
        -ms-transform:     rotateY( 0deg );
        -o-transform:      rotateY( 0deg );
        -webkit-transform: rotateY( 0deg );
}

div[id$="2"] {
    transform:             rotateY( 180deg );
        -moz-transform:    rotateY( 180deg );
        -ms-transform:     rotateY( 180deg );
        -o-transform:      rotateY( 180deg );
        -webkit-transform: rotateY( 180deg );
}

.flip-side-1 {    
    transform:             rotateY( 0deg ) !important;
        -moz-transform:    rotateY( 0deg ) !important;
        -ms-transform:     rotateY( 0deg ) !important;
        -o-transform:      rotateY( 0deg ) !important;
        -webkit-transform: rotateY( 0deg ) !important;
}

.flip-side-2 {
    transform:             rotateY( 180deg ) !important;
        -moz-transform:    rotateY( 180deg ) !important;
        -ms-transform:     rotateY( 180deg ) !important;
        -o-transform:      rotateY( 180deg ) !important;
        -webkit-transform: rotateY( 180deg ) !important;
}