#pdfFrame {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 52px;
    width: 100%;
    height: calc(100% - 52px);
    border: none;
    background: white;
    visibility: hidden;
    opacity: 0;
}

#pdfFrame.toolbar-ready {
    visibility: visible;
    opacity: 1;
    transition: opacity 120ms ease;
}

#pdfFrame.status-hidden {
    bottom: 0;
    height: 100%;
    transition: bottom 240ms ease, height 240ms ease;
}