isplay: flex;
  flex-direction: column;
}

#references-pane-container.active {
  display: flex;
}

#references-pane-close:after {
  content: '✖';
  float: right;
  cursor: pointer;
}

#references-pane table tr td:first-child {
  text-align: right;
  padding-right: 5px;
}

@media print {
  #menu-toggle {
    display: none; 
  }
}
</style></head><body><div id="menu-toggle">☰</div><div id="menu-spacer"></div><div id="menu"><div id="menu-search"><input type="text" id="menu-search-box" placeholder="Search...