docs: function resize(e) {
          var deltaSize, doc, body, docElm, resizeHeight, myHeight,
            marginTop, marginBottom, paddingTop, paddingBottom, borderTop, borderBottom;
  
          doc = editor.getDoc();
          if (!doc) {
            return;
          }
  
          body = doc.body;
          docElm = doc.documentElement;
          resizeHeight = settings.autoresize_min_height;
  
          if (!body || (e && e.type === "setcontent" && e.initial) || isFullscreen()) {
            if (body && docElm) {
              body.style.overflowY = "auto";
              docElm.style.overflowY = "auto"; // Old IE
            }
  
            return;
          }
  
          // Calculate outer height of the body element using CSS styles
          marginTop = editor.dom.getStyle(body, 'margin-top', true);
          marginBottom = editor.dom.getStyle(body, 'margin-bottom', true);
          paddingTop = editor.dom.getStyle(body, 'padding-top', true);
          paddingBottom = editor.dom.getStyle(body, 'padding-bottom', true);
          borderTop = editor.dom.getStyle(body, 'border-top-width', true);
          borderBottom = editor.dom.getStyle(body, 'border-bottom-width', true);
          myHeight = body.offsetHeight + parseInt(marginTop, 10) + parseInt(marginBottom, 10) +
            parseInt(paddingTop, 10) + parseInt(paddingBottom, 10) +
            parseInt(borderTop, 10) + parseInt(borderBottom, 10);
  
          // Make sure we have a valid height
          if (isNaN(myHeight) || myHeight <= 0) {
            // Get height differently depending on the browser used
            // eslint-disable-next-line no-nested-ternary
            myHeight = Env.ie ? body.scrollHeight : (Env.webkit && body.clientHeight === 0 ? 0 : body.offsetHeight);
          }
  
          // Don't make it smaller than the minimum height
          if (myHeight > settings.autoresize_min_height) {
            resizeHeight = myHeight;
          }
  
          // If a maximum height has been defined don't exceed this height
          if (settings.autoresize_max_height && myHeight > settings.autoresize_max_height) {
            resizeHeight = settings.autoresize_max_height;
            body.style.overflowY = "auto";
            docElm.style.overflowY = "auto"; // Old IE
          } else {
            body.style.overflowY = "hidden";
            docElm.style.overflowY = "hidden"; // Old IE
            body.scrollTop = 0;
          }
  
          // Resize content element
          if (resizeHeight !== oldSize) {
            deltaSize = resizeHeight - oldSize;
            DOM.setStyle(editor.iframeElement, 'height', resizeHeight + 'px');
            oldSize = resizeHeight;
  
            // WebKit doesn't decrease the size of the body element until the iframe gets resized
            // So we need to continue to resize the iframe down until the size gets fixed
            if (Env.webKit && deltaSize < 0) {
              resize(e);
            }
          }
        }