world-data.css

/*
 *  @license
 *  This file is part of world-data element.
 *
 *  world-data is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  any later version.
 *
 *  world-data is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with world-data. If not, see <http://www.gnu.org/licenses/>.
 */

:host {
  display: block;
}

/* To ensure your styling works under the Shadow DOM polyfill, see
   www.polymer-project.org/docs/polymer/styling.html#directives */
polyfill-next-selector { content: ':host > h2'; }
::content h2 {
  color: blue;
}