title: Why bootstrap doesn't use an X icon for the close button?
body: <p>I always wondered why bootstrap doesn't use an X icon for the close button.</p>
  
  <p>Is there any reason to not use the standard X?</p>
  
  <p>Example:</p>
  
  <p><img src="https://i.stack.imgur.com/E06UV.png" alt="bootstraop modal"></p>
  
  <p>Standard X (gmail.com):</p>
  
  <p><img src="https://i.stack.imgur.com/NOWXq.png" alt="enter image description here"></p>