title: How to select all elements under a class?
body: <p>I currently have this in my css file.<br></p>
  
  <pre><code>*,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  </code></pre>
  
  <p>and I have another class called </p>
  
  <pre><code>.chat{
  ...
  }
  </code></pre>
  
  <p>but I dont want to use that previous <code>*</code> selector. I only want to select all the elements that come under <code>.chat</code> class. Not all the elements in the whole damn website, but all the elements that comes under the <code>.chat</code> class. How do I do it?</p>