X<input type='range' min=-8 max=8 step='any' id='panX' oninput='panning()'>
<br><br><br><br>
Z<input type='range' min=-8 max=8 value=-1 step='any' id='panZ'
  style='transform:rotate(90deg)' oninput='panning()'>
<script src='listener.js'></script>