code: function (el) {
              if (!subpixelRenderingIsSupported) {
                  if (document.body.style.zoom !== undefined) {
                      var $wrap = $('<div>').addClass(CSS_CLASS_SUBPX_FIX);
                      $(el).wrap($wrap);
                  }
              }
              return el;
          }
docs: Apply the subpixel rendering fix to the given element if necessary.
  @NOTE: Fix is only applied if the "zoom" CSS property exists
  (ie., this fix is never applied in Firefox)
  @param   {Element} el The element
  @returns {Element} The element