title: RMarkdown with knitr to HTML: How to hide bullets in TOC (table of contents)?
body: <p>How can I <strong>suppress the bullet points in front of the TOC items</strong> in the created HTML file? I want to see only the headline numbers...</p>
  
  <p>Example <strong>Test.Rmd</strong> file:</p>
  
  <pre><code>---
  title: "Untitled"
  author: "Author"
  date: "01/25/2015"
  output:
    html_document:
      number_sections: true
      toc: yes
      toc_depth: 3
  ---
  
  *Content*
  
  # Headline 1
  ## Sub headline 1.1
  ## Sub headline 1.2
  ### Sub sub headline 1.2.1
  # Headline 2
  </code></pre>
  
  <p>The <strong>TOC of the resulting HTML document</strong> will look like this (with the unwanted bullet points - here indicated via the * char):</p>
  
  <pre><code>Untitled
  Author
  
  01/25/2015
  
  * 1 Headline 1
    * 1.1 Sub headline 1.1
    * 1.2 Sub headline 1.2
      * 1.2.1 Sub sub headline 1.2.1
  * 2 Headline 2
  ...
  </code></pre>
  
  <p>The reason for bullet points is the li tag that knitr uses with the default HTML template. The <strong>created HTML code</strong> looks like this:</p>
  
  <pre><code>&lt;div id="TOC"&gt;
  &lt;ul&gt;
  &lt;li&gt;&lt;a href="#headline-1"&gt;&lt;span class="toc-section-number"&gt;1&lt;/span&gt; Headline 1&lt;/a&gt;&lt;ul&gt;
  &lt;li&gt;&lt;a href="#sub-headline-1.1"&gt;&lt;span class="toc-section-number"&gt;1.1&lt;/span&gt; Sub headline 1.1&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;&lt;a href="#sub-headline-1.2"&gt;&lt;span class="toc-section-number"&gt;1.2&lt;/span&gt; Sub headline 1.2&lt;/a&gt;&lt;ul&gt;
  &lt;li&gt;&lt;a href="#sub-sub-headline-1.2.1"&gt;&lt;span class="toc-section-number"&gt;1.2.1&lt;/span&gt; Sub sub headline 1.2.1&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;&lt;/li&gt;
  &lt;/ul&gt;&lt;/li&gt;
  &lt;li&gt;&lt;a href="#headline-2"&gt;&lt;span class="toc-section-number"&gt;2&lt;/span&gt; Headline 2&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I read a little bit about <strong>CSS</strong> to suppress bullet points but I have no idea to solve this issue:</p>
  
  <p><a href="https://stackoverflow.com/questions/10487908/how-to-hide-li-bullets-in-navigation-menu-and-footer-links-but-show-them-for-l">how to hide &lt;li&gt; bullets in navigation menu and footer links BUT show them for listing items</a></p>