text: /* */ 
  "format global";
  "deps ../modernizr";
  // By @mathias, based on http://mths.be/axh
  Modernizr.addTest('details', function() {
      var doc = document,
          el = doc.createElement('details'),
          fake,
          root,
          diff;
      if (!('open' in el)) { // return early if possible; thanks @aFarkas!
          return false;
      }
      root = doc.body || (function() {
          var de = doc.documentElement;
          fake = true;
          return de.insertBefore(doc.createElement('body'), de.firstElementChild || de.firstChild);
      }());
      el.innerHTML = '<summary>a</summary>b';
      el.style.display = 'block';
      root.appendChild(el);
      diff = el.offsetHeight;
      el.open = true;
      diff = diff != el.offsetHeight;
      root.removeChild(el);
      fake && root.parentNode.removeChild(root);
      return diff;
  });