text: !(function (doc, win) {
      var el = doc.documentElement;
      //resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
  
      function setSize() {
          var w = el.clientWidth;
          if (!w) return;
          w=w>480?480:w;
          w=w<320?320:w;
          el.style.fontSize = (100 * (w / 1080)).toFixed(3) + 'px';
      }
      if (!doc.addEventListener) return;
      setSize();
      win.addEventListener('resize', setSize, false);
      win.addEventListener('pageshow', function(e) {
           if (e.persisted) {
              setSize();
           }
      }, false);
  })(document, window);
  