title: CSS img:hover based on alt value
body: <p>Can anyone tell me how I can apply some CSS to an <code>&lt;img&gt;</code> tag, based on its <code>alt</code>-attribute value?</p>
  
  <p>e.g. I have images with an ALT value of DISAPPEAR</p>
  
  <p>When hovered over, I want to set</p>
  
  <pre><code>img[DISAPPEAR]:hover
  {
    display:none;
  }
  </code></pre>
  
  <p>The code above doesn't seem to work though :(</p>