: 16px" id="content">


    <p>Specifies an alternative relief for the button, to be used when the mouse cursor is over the widget.</p>
  
    
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<p>Acceptable values are</p>

<ul>
  <li>raised</li>

  <li>sunken</li>

  <li>flat</li>

  <li>ridge</li>

  <li>solid</li>

  <li>groove</li>
</ul>

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    <p>This option can be used to make toolbar buttons, by configuring <code>#:relief 'flat #:overrelief 'raised</code>.</p>
  
    <p>If the value of this option is <code>()</code>