code: function (element) {
              var oBody = this.body || (this.body = createBody());
          
              oBody.appendChild(element);
  
              this.changeBodyEvent.fire(element);
              this.changeContentEvent.fire();
  
          }
docs: Appends the passed element to the body. If no body is present, one
  will be automatically created.
  @method appendToBody
  @param {HTMLElement | DocumentFragment} element The element to
  append to the body. In the case of a document fragment, the
  children of the fragment will be appended to the body.