anchor.diff:    </script>
   </head>
     <body onload="startTesting()">
  -    Dart test driver, number of tests: <div id="number"></div><br>
  -    Currently executing: <div id="currently_executing"></div><br>
  -    Unhandled error: <div id="unhandled_error"></div>
  -    <iframe id="embedded_iframe"></iframe>
  +    <div class="controller box">
  +    Dart test driver, number of tests: <span id="number"></span><br>
  +    Currently executing: <span id="currently_executing"></span><br>
  +    Unhandled error: <span id="unhandled_error"></span>
  +    </div>
  +    <div class="test box">
  +      <iframe style="width:100%;height:100%;" id="embedded_iframe"></iframe>
  +    </div>
     </body>
   </html>
   """;
  
positive.code:     String driverContent = """
  <!DOCTYPE html><html>
  <head>
    <title>Driving page</title>
    <script type='text/javascript'>
      var STATUS_UPDATE_INTERVAL = 10000;
  
negative.code:   }
  
    Future<bool> terminate() {
      var browsers = [];
      underTermination = true;
      testingServer.underTermination = true;
      for (BrowserTestingStatus status in browserStatus.values) {
        browsers.add(status.browser);
        if (status.nextTestTimeout != null) {
          status.nextTestTimeout.cancel();
          status.nextTestTimeout = null;
        }
      }
      // Success if all the browsers closed successfully.
      bool success = true;
      Future closeBrowser(Browser b) {
        return b.close().then((bool closeSucceeded) {
          if (!closeSucceeded) {
            success = false;
          }
        });
      }
      return Future.forEach(browsers, closeBrowser).then((_) {
        testingServer.errorReportingServer.close();
        printDoubleReportingTests();
        return success;
      });
    }
  
  