@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");/**  * All the properties in this rule are important to avoid having to create  * a special type of tree. This stylesheet can be loaded into a document with * a single tree that is a link tree. Hardly elegant but it's efficient. */  treeitem[selected="true"] > treerow  {    background            : transparent !important;    border                : none !important;    color                 : -moz-FieldText !important;  }  treecell:hover  {    text-decoration       : underline !important;    color                 : #000080 !important;    cursor                : pointer;  }  treecell:hover:active  {    text-decoration       : underline !important;    color                 : red !important;  }     