title: Can I add multiple classes to a div element? (CSS)
body: <p>Is it possible to add multiple classes to a div element? I try to add the <em>full</em> and the <em>b</em> class, but it does not work.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>#card { 
  /* default for card */
      width: 300px;
      height: 50px;
      padding: 15px;
      background-color: yellow;
      box-shadow: 10px 10px 40px grey;
  }
  
  #card.g {
      background-color: lightgreen;
      box-shadow: 10px 10px 40px grey;
  }
  #card.b {
      background-color: lightblue;
      box-shadow: 10px 10px 40px grey;
  }
  
  #card.full{
      width:100%;
      height:100%;
      padding:10px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;h3 id="card" class="full" class="b"&gt;Hi!&lt;/h3&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>I am sorry if this is a bad question, I am new to programming.</p>