markup(tag, content = '', attributes = {}) {
    this.element = markup(tag, content, attributes)
    return this.element
  }
wrap the utils.markup method
ideally this would be inherited from a parent 'dom' type element supporting dom helper type methods
@param  {String} tag
@param  {Object|String|Array} content
@param  {Object} attributes
@return {Object} DOM element