title: How to change css of element using jquery
body: <p>I have defined a CSS property as</p>
  
  <pre><code>#myEltId span{
    border:1px solid black;
  }
  </code></pre>
  
  <p>On clicking a button, I want to remove its border.</p>
  
  <pre><code>$('#button1').click(function() {
    // How to fetch all those spans and remove their border
  });
  </code></pre>