.citation-tooltip {
  position: fixed;
  z-index: 2147483647;
  box-sizing: border-box;
  max-width: min(460px, calc(100vw - 16px));
  max-height: min(320px, calc(100vh - 16px));
  overflow: auto;
  padding: 8px 10px;
  border: 1px solid #000;
  border-radius: 0;
  background: #ffffe1;
  color: #000;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, .25);
  font: 13px/1.6 "Microsoft YaHei", "SimSun", sans-serif;
  white-space: pre-line;
  overflow-wrap: anywhere;
  pointer-events: none;
}
.citation-tooltip[hidden] { display: none; }
@media print { .citation-tooltip { display: none !important; } }