text: /**
   * dat-gui JavaScript Controller Library
   * http://code.google.com/p/dat-gui
   *
   * Copyright 2011 Data Arts Team, Google Creative Lab
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   */
  module.exports = css();
  
  function css() {
    return {
      load: function (url, doc) {
        doc = doc || document;
        var link = doc.createElement('link');
        link.type = 'text/css';
        link.rel = 'stylesheet';
        link.href = url;
        doc.getElementsByTagName('head')[0].appendChild(link);
      },
      inject: function(css, doc) {
        doc = doc || document;
        var injected = document.createElement('style');
        injected.type = 'text/css';
        injected.innerHTML = css;
        doc.getElementsByTagName('head')[0].appendChild(injected);
      }
    };
  }
  