body {
    margin:0;
    padding:0;
}

#adArea {
    background: #ffffff;
    /*background: #333333;*/
    overflow: hidden;
    text-overflow: clip;
    cursor:pointer;
}

#dragEl {
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
}

#box {
    width: 20px;
    height: 20px;
    background-color: rgba(0, 0, 0, 0.5);
}

#grades {
    opacity: 1;
}

#mainCont {
    -webkit-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    transform-style: preserve-3d;
    position: absolute;
    -webkit-perspective: 400px;
    -ms-perspective: 400px;
    perspective: 400px;
    perspective-origin: 50% 50%;
    -webkit-perspective-origin: 50% 50%;
    -ms-perspective-origin: 50% 50%;
}

.cube {
    position: absolute;
    -webkit-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    transform-style: preserve-3d;
    transform-origin: 50% 50%;
    -webkit-perspective-origin: 50% 50%;
    -ms-perspective-origin: 50% 50%;
    transform: rotateY(0deg) rotateX(0deg) rotateZ(0deg);

    -webkit-transform: rotateY(0deg) rotateX(0deg) rotateZ(0deg);
    -ms-transform: rotateY(0deg) rotateX(0deg) rotateZ(0deg);
}

.face {
    position: absolute;
    -webkit-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    transform-style: preserve-3d;

    perspective-origin: 50% 100px;
    -webkit-perspective-origin: 50% 100px;
    -ms-perspective-origin: 50% 100px;

    backface-visibility: hidden;
}


.center {
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.abs {
    position: absolute;
}
.rct {
    width:300px;
    height:250px;
    position: absolute;
}
.opacity0 { opacity: 0; }
.opacity1 { opacity: 1; }

.zi1 { z-index: 800; }
.zi2 { z-index: 900; }
.zi5 { z-index: 5000; }
.zi6 { z-index: 6000; }
.zi7 { z-index: 7000; }
.zi9 { z-index: 9000; }

.hidden{
    visibility: hidden;
}
.noEvents{
    pointer-events: none;
}
.noVis{
    visibility: hidden;
}
.noDisplay{
    display: none;
}