text: (function(doc, win) {
      var docEl = doc.documentElement,
          resizeEvt = 'orientationchange' in window? 'orientationchange': 'resize',
          recalc = function() {
              var clientWidth = docEl.clientWidth;
              if (!clientWidth) return;
              console.log(clientWidth)
              docEl.style.fontSize = 20 * (clientWidth / 320) + 'px'
          };
      if (!doc.addEventListener) return;
      win.addEventListener(resizeEvt, recalc, false)
      doc.addEventListener('DOMContentLoaded', recalc, false);
  })(document, window)