[indentwrap demo] Fix inherited text-indent messing up tabs

Issue #2085

demo/indentwrap.html

@@ -9,6 +9,7 @@
 <script src="../mode/xml/xml.js"></script>
 <style type="text/css">
       .CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
+      .CodeMirror pre > * { text-indent: 0px; }
     </style>
 <div id=nav>
   <a href="http://codemirror.net"><img id=logo src="../doc/logo.png"></a>