.pdfobject-container {
    padding-bottom: 80%;
    width: 100%;
    position: relative;
    border: black 1px solid;
}

.pdfobject-container iframe {
    border: none;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
}