.node_is_hidden,.node_is_hidden *,a.node_is_hidden,a.node_is_hidden:link,a.node_is_hidden:active{text-decoration:line-through;opacity:.7;zoom:1;-ms-filter:"alpha(opacity=70)";filter:alpha(opacity=70)}table#book-outline .node_is_hidden *{opacity:.8}table#book-outline .node_is_hidden:hover *{opacity:1;text-decoration:none}