title: HTML + CSS: Add a class/id to simple text
body: <p>I'm currently stuck at a probably very trivial problem:</p>
  
  <p>I have a simple HTML/CSS page with a text:</p>
  
  <pre><code>&lt;head&gt;&lt;/head&gt;
  &lt;body&gt;
      This is a Text about Foobar.
  &lt;/body&gt;
  </code></pre>
  
  <p>How is it possible to assign a CSS-class/id to the word <code>Text</code> without breaking the format? Let's say I want to add the class <code>.yellow</code> to it, which displays the text with a yellow background.</p>
  
  <p>I think I got something blocking my mind cause it can't be that difficult... But all I can google (mostly trivial tutorials) uses CSS just on usual HTML-elements like <code>&lt;p&gt;</code> or <code>&lt;b&gt;</code> which would break my format.</p>