title: More elegant way to express a CSS selector
body: <p>Is there a more elegant way to write the following CSS selector?</p>
  
  <pre><code>input:not([type="image"]):not([type="submit"])
  </code></pre>
  
  <p>I want to match all HTML <code>input</code> elements that are not of type <code>image</code> or of type <code>submit</code>.</p>
  
  <p>Target browser is <em>only</em> Firefox, so Mozilla CSS extensions are fine.</p>