title: css for the title of all spans of a certain class
body: <p>I'm using javascript to dynamically add spans to the html on my page, and giving those spans the class "query_error" and a dynamic title based on the value of err_msg, e.g,</p>
  
  <pre><code>"&lt;span class=query_error title='" + err_msg + "'&gt;" + replacement + "&lt;/span&gt;"
  </code></pre>
  
  <p>(where "replacement" is simply the piece of text that has the query error).  All this works fine, and I can apply css to the span with</p>
  
  <pre><code>.query_error{
      font-family: "Monaco", "Inconsolata", Courier, monospace;
      font-size: 15px;
      font-weight: bold;
      color: red;
  }
  </code></pre>
  
  <p>But I can't figure out how to add css to the title itself so I can change the font color, size, etc.  Is this possible (without using a plugin)?<br>
  TIA</p>