anchor.diff:  <table data-width="800">
     <tr>
       <td class="panel">
  -        10. Click <div id="setup" class="button">setup</div>,
  -        choose a <div class="button">language</div>
  -        and an <div class="button">exercise</div>,<br/>
  -        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; click <div id="ok" class="button">ok</div>.
  +        10. Click <button id="setup" type="button">setup</button>,
  +        choose a <button type="button">language</button>
  +        and an <button type="button">exercise</button>,<br/>
  +        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; click
  +        <button type="button">ok</button>.
           You'll get an id, e.g.,
           <span class='kata_id_input'>&nbsp;3AF65A&nbsp;</span>
       </td>
  
positive.code:     <td class="panel">
          20. At <em>each</em> computer
          enter the <span class="kata_id_input">&nbsp;3AF65A&nbsp;</span> id
          and click <div id="start_coding" class="button">start</div>
      </td>
    </tr>
  
  
negative.code:   <tr>
      <td class="panel">
          50. When time is up use the
          <button id="review_coding" type="button">review</button> dashboard
          to review everyones<br/>
          &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; code and choose what aspects to focus
          on improving in the next iteration.
  