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[zericsong]

Challenge Give Each Element a Unique ID has an issue. User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:70.0) Gecko/20100101 Firefox/70.0. Please describe how to reproduce this issue, and include links to screenshots if possible.

My code:

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target1"></button>
        <button class="btn btn-default target2"></button>
        <button class="btn btn-default target3"></button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target4"></button>
        <button class="btn btn-default target5"></button>
        <button class="btn btn-default target6"></button>
      </div>
    </div>
  </div>
</div>