.qepw-pdf-viewer-block {
    padding: 15px;
    background: #f7f7f7;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.qepw-pdf-viewer-block .button {
    margin-top: 10px;
}

.qepw-pdf-viewer-block a {
    display: block;
    margin-top: 5px;
    color: #007cba;
}