.multi-document-viewer-panel .header {
    padding: 5px;
}
.multi-document-viewer-panel .header span {
    font-size: 14px;
    font-weight: 600;
}
.multi-document-viewer-panel .icons-list > li {
    padding: 3px 0;
}
.multi-document-viewer-panel .icons-list > li > a.disabled {
    opacity: 0.3;
}