title: how to specify height and width of flex alert box in css?
body: <p>In my Flex 4 app I would like all my alert boxes to be a specific width and height, how do I specify that in the CSS? I want to avoid having to specify the width and height every time I want to show an alert, that's why I'd like to set it in the CSS, but does not look like there's a way to..
  Something like this does not work: </p>
  
  <pre><code>mx|Alert
  {
    height: 100;
    width: 300;
  }
  </code></pre>