select-appearance-active-ref.html

Enable keyboard shortcuts

<!DOCTYPE html>

<link rel=stylesheet href="resources/customizable-select-styles.css">

<div class="customizable-select-button active" popovertarget=popover id=button>

  <span class=customizable-select-selectedoption>option</span>

</div>

<div id=popover popover=auto anchor=button class=customizable-select-popover>

  <div class="customizable-select-option selected">option</div>

</div>

<script>

document.getElementById('popover').showPopover();

</script>