Updated alignment example.

examples/widgets/Part 5 - Alignment.ipynb

@@ -7,7 +7,7 b''
    ]
   ],
   "name": "",
-  "signature": "sha256:e7b51248cb483993b8c859c167ae4fa3cb26a6be924b1a4cd36e1b4d6213dcb8"
+  "signature": "sha256:25599ae01786ec88374ddc5bd814583b1c0cd9fbe69f59fefaeba5c3b1507735"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -143,7 +143,10 b''
       "    })\n",
       "    \n",
       "    container = widgets.ContainerWidget()\n",
-      "    container.set_css('background', '#999999')\n",
+      "    container.set_css({\n",
+      "        'background': '#999999',\n",
+      "        'width': '100%',\n",
+      "    })\n",
       "    display(container)\n",
       "    return container\n",
       "\n",
@@ -307,7 +310,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 9
+     "prompt_number": 8
     },
     {
      "cell_type": "markdown",
@@ -330,7 +333,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 11
+     "prompt_number": 9
     },
     {
      "cell_type": "markdown",