code: function(children) {
        return this.each(function(index, el, first) {
          first = el.firstChild;
          children.each(function(index, child) {
            el.insertBefore(child, first);
          });
        });
      }
docs: prepend method
  prepend child element(s) to this element
  @param  {object} children - dom element(s) to be prepended
  @return {object} this