A slightly modified version of the nbconvert template originally found here: http://damianavila.github.io/blog/posts/mimic-the-ipython-notebook-cell-execution.html

toggle.tpl

{%- extends 'full.tpl' -%}
// Source: http://damianavila.github.io/blog/posts/mimic-the-ipython-notebook-cell-execution.html

{% block input_group -%}/Users/geoffruddock/Library/Jupyter/nbconvert/templates
<div class="input_hidden">
{{ super() }}
</div>
{% endblock input_group %}

{%- block header -%}
{{ super() }}

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>

<style type="text/css">
//div.output_wrapper {
//  margin-top: 0px;
//}
.input_hidden {
  display: none;
//  margin-top: 5px;
}
div.prompt {
    display: none;
}
.CodeMirror{
    font-family: "Consolas", sans-serif;
}
p {font-size:14px;}
</style>

<script>
$(document).ready(function(){
  $(".output_wrapper").click(function(){
      $(this).prev('.input_hidden').slideToggle();
  });
})
</script>
{%- endblock header -%}