title: CSS end of line character
body: <p>Okay, what I want is this:
  When the &lt;p&gt; tag ends with &lt;/p&gt;, I want to add a character at the end of the line. For example</p>
  
  <pre><code>&lt;p&gt;Something and more!&lt;/p&gt;
  </code></pre>
  
  <p>Should look like</p>
  
  <blockquote>
    <p>Something and more!_</p>
  </blockquote>
  
  <p>Where the '_' (underscore) is the added character. <br>
  Is this possible with CSS?<br>
  Is it also possible at the end of a line?</p>