.ebookvault-wrap { border: 1px solid #e5e7eb; border-radius: 10px; overflow: hidden; }
.ebookvault-toolbar { display:flex; justify-content:space-between; padding:10px 12px; background:#f9fafb; font-size:14px; }
.ebookvault-note { opacity:0.75; font-size:12px; }
.ebookvault-frame { height: 80vh; }
.ebookvault-frame iframe { width:100%; height:100%; border:0; }