docs: function query (el) {
  	  if (typeof el === 'string') {
  	    var selector = el;
  	    el = document.querySelector(el);
  	    if (!el) {
  	      "development" !== 'production' && warn(
  	        'Cannot find element: ' + selector
  	      );
  	      return document.createElement('div')
  	    }
  	  }
  	  return el
  	}