#pdfDisplay {
    width:90%;
    max-width:800px;
}

.pdfobject-container { 
    height: 600px;
}
.pdfobject { border: 1px solid #666; }

.flex-container {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    margin-top:40px;
    margin-bottom:60px;
}