.dp-main-documentation {
    position: absolute;
    left: 0;
    width: 100%;
    height: calc(100% - 70px);
    top: 70px;
    background: #fff;
    transition: opacity 0.2s ease-in-out;
    -webkit-overflow-scrolling: touch;
}

.dp-main-documentation iframe {
    border: none;
    display: block;
    opacity: 0;
    transition: opacity 150ms ease-in;
    will-change: opacity;
}