title: TYPO3 extensions/plugins creating <p> tags in HTML pages
body: <p>I created an extension and plugin using extension builder which generates some HTML code to a file <code>fileadmin/templates/List.html</code>.This content goes into my web page's template.html as</p>
  
  <pre><code>&lt;f:section name="some-content"&gt;
  &lt;f:format.html&gt; {some_content} &lt;/f:format.html&gt; 
  &lt;/f:section&gt;
  </code></pre>
  
  <p>some_content comes from my Typoscript template </p>
  
  <pre><code>some_content &lt; styles.content.get
  some_content.select.where = colPos = 1
  </code></pre>
  
  <p>The plugin is attached from a backend layout</p>
  
  <p>The problem is that in my HTML page I get plugin information in <code>&lt;p&gt;</code> tags</p>
  
  <pre><code>&lt;p class="bodytext"&gt;&amp;nbsp;&lt;/p&gt;
  &lt;p class="bodytext"&gt;    &lt;!--  CONTENT ELEMENT, uid:260/list [begin] --&gt;&lt;/p&gt;
  &lt;p class="bodytext"&gt;&amp;nbsp;&lt;/p&gt;&lt;div id="c260" class="csc-default"&gt;&lt;p class="bodytext"&gt;&amp;nbsp;&lt;/p&gt;
  &lt;p class="bodytext"&gt;        &lt;!--  Plugin inserted: [begin] --&gt;&lt;/p&gt;
  &lt;p class="bodytext"&gt;&amp;nbsp;&lt;/p&gt;
  &lt;p class="bodytext"&gt;        &lt;!--  Plugin inserted: [end] --&gt;&lt;/p&gt;
  &lt;p class="bodytext"&gt;&amp;nbsp;&lt;/p&gt;&lt;/div&gt;&lt;p class="bodytext"&gt;    &lt;!--  CONTENT ELEMENT, uid:260/list [end] --&gt;&lt;/p&gt;
  &lt;p class="bodytext"&gt;&amp;nbsp;&lt;/p&gt;
  </code></pre>
  
  <p>And this messing up my CSS. </p>