title: Changing the font in iPython notebook markdown cells
body: <p>I just wanted to change the default font in Ipython (1.0.0) notebook markdown cells to something else, and tried doing this using style tags in a markdown cell instead of going through the path of creating a custom.css. I do not know CSS, and my needs are very minimal. After some research, I found the following code snippet:</p>
  
  <pre><code>&lt;style&gt;
  div.text_cell_render {
  font-family: "Times New Roman", serif;
  ...
  }
  &lt;/style&gt;
  </code></pre>
  
  <p>I applied the above CSS code to a markdown cell, however the font in the other markdown text cells did not change. Do I have to turn something on first? Below is how it looks like:</p>
  
  <p><img src="https://i.stack.imgur.com/GRaFq.png" alt="Scrrenshot"></p>