Fix iframe in matplotlib lecture

06 - Plotting with matplotlib.ipynb

 {
  "metadata": {
   "name": "",
-  "signature": "sha256:0d3c27973670c5578524fca2146ae7c1ff2aaa39e6dd3b2cc19edd2cac234e7f"
+  "signature": "sha256:3d62e94d5c6c17f910c0abfea9083da26f93d4d25b2eceb9ac25548b2696866e"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -212,17 +212,42 @@
     },
     {
      "cell_type": "markdown",
-     "metadata": {
-      "slideshow": {
-       "slide_type": "subslide"
-      }
-     },
+     "metadata": {},
      "source": [
-      "The gallery on the matplotlib homepage is **really** useful: [matplotlib.org/gallery.html](http://matplotlib.org/gallery.html)\n",
-      "\n",
-      "<iframe src=\"http://matplotlib.org/gallery.html\" width=\"860\" height=\"400\"></iframe>"
+      "The gallery on the matplotlib homepage is **really** useful: [matplotlib.org/gallery.html](http://matplotlib.org/gallery.html)"
      ]
     },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "IFrame('http://matplotlib.org/gallery.html', '100%', 400)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "html": [
+        "\n",
+        "        <iframe\n",
+        "            width=\"100%\"\n",
+        "            height=400\"\n",
+        "            src=\"http://matplotlib.org/gallery.html\"\n",
+        "            frameborder=\"0\"\n",
+        "            allowfullscreen\n",
+        "        ></iframe>\n",
+        "        "
+       ],
+       "metadata": {},
+       "output_type": "pyout",
+       "prompt_number": 6,
+       "text": [
+        "<IPython.lib.display.IFrame at 0x3bcb790>"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
     {
      "cell_type": "heading",
      "level": 1,