This is a <datalist>, which doesn’t render anything on its own. See the Login Sequence Step E where it’s used with the Institution text field.

<datalist id="{{ datalist.id }}">
  <option value="University of California, Berkeley"></option>
  <option value="Harvard University"></option>
  <option value="Stanford University"></option>
  <option value="California State University, East Bay"></option>
  <option value="Boston College"></option>
</datalist>
{
  "datalist": {
    "id": "datalist-id"
  }
}
<datalist id="datalist-id">
    <option value="University of California, Berkeley"></option>
    <option value="Harvard University"></option>
    <option value="Stanford University"></option>
    <option value="California State University, East Bay"></option>
    <option value="Boston College"></option>
</datalist>