try to set scrolling on parent iframe (if any)

index.html

@@ -127,7 +127,7 @@
       <option value="Poblacion_Nacida_Argentina_2010">% Población Nacida en Argentina (2010)</option>
     </select>
     <div class="vcard">
-      <strong><a href="http://github.com/jazzido/d3micromaps">d3.micromaps</a></strong> — <a href="http://github.com/jazzido/d3micromaps">Code</a> under MIT License — Copyright © 2013
+      <strong><a href="http://github.com/jazzido/d3micromaps">d3.micromaps</a></strong> — Copyright © 2013
       <a class="url fn n" href="http://jazzido.com/">
         <span class="given-name">Manuel</span>
         <span class="family-name">Aristarán</span>
@@ -357,6 +357,11 @@
     d3.select('select#variable').on('change')();
 };
 
+if (window.frameElement) { // for bl.ocks.org
+   window.frameElement.contentWindow.document.body.scroll = 'yes';
+   window.frameElement.scrolling = 'yes';
+}
+
 queue()
     .defer(d3.csv, 'lanacion-censo.csv')
     .defer(d3.json, 'argentina.json')