.iib-board-container-front {
    width: 100%;
    overflow: hidden;
    margin: 20px 0;
    position: relative;
    z-index: 1;
    background-color: transparent;
}

.iib-board-front {
    width: 800px;
    height: 600px;
    background-color: transparent;
    position: relative;
    transform-origin: 0 0;
    z-index: 2;
}

.iib-item-front {
    position: absolute;
    z-index: 3;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.iib-item-front img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    pointer-events: auto;
}

.iib-item-front a {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 4;
}