title: Change span class content
body: <p>Firstimer here. Sorry if myquestion is too stupid.</p>
  
  <p>How can I change the label in :</p>
  
  <pre><code>&lt;span class="fluid-thumbnail-grid-image-type"&gt;
  XYZ
  &lt;/span&gt;
  </code></pre>
  
  <p>I want change XYZ to something else in a hosted application.
  I have access only to add custom CSS to the head section.</p>
  
  <p>Thanks in advance</p>
  
  <p>Fernando</p>