Mock up code completion.

dart/site/try/src/ui.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library trydart.ui;
 
 import 'dart:html';
 
 import 'dart:async' show
     scheduleMicrotask;
@@ skipping 160 matching lines @@
   // TODO(ahe): Update currentSample.  Or try switching to a drop-down menu.
   var active = inspirationTabs.query('[id="$currentSample"]');
   if (active == null) {
     // inspirationTabs.query('li').classes.add('active');
   }
 
   (inputPre = new DivElement())
       ..classes.add('well')
       ..style.backgroundColor = currentTheme.background.color
       ..style.color = currentTheme.foreground.color
-      ..style.overflow = 'auto'
+      ..style.overflow = 'visible'
       ..style.whiteSpace = 'pre'
       ..style.font = codeFont
       ..spellcheck = false;
 
   inputPre.contentEditable = 'true';
   inputPre.onKeyDown.listen(onKeyUp);
 
   var inputWrapper = new DivElement()
       ..append(inputPre)
       ..style.position = 'relative';
@@ skipping 218 matching lines @@
 
     dialog.style.display = 'none';
     dialog.classes.remove('in');
     backdrop.remove();
   }
   form.onSubmit.listen(onSubmit);
 
   var doneButton = document.getElementById('settings-done');
   doneButton.onClick.listen(onSubmit);
 }