.download_categories-tree {
  background-color: white;
}

ul.tree, ul.tree ul {
  background-color: inherit;
  list-style-type: none;
  background-image: url("<%= asset_path 'ecm_downloads/download_categories/vertical_line.png' %>");
  background-repeat: repeat-y;
  margin: 0; 
  padding: 0;  
}

.tree ul {
  margin-left: 10px;
}

ul.tree li {
  margin: 0; 
  padding: 0 12px;
  line-height: 20px; 
  background: url("<%= asset_path 'ecm_downloads/download_categories/node.png' %>"); 
  background-repeat: no-repeat; 
}

ul.tree li:last-child { 
  background-color: white;
  background-image: url("<%= asset_path 'ecm_downloads/download_categories/last_node.png' %>") !important; 
  background-repeat: no-repeat; 
}