https://stackoverflow.com/questions/33985130/create-a-custom-autocomplete-list-for-an-input-field
Country: <input list="country" name="countru">
<datalist id="country">
<option value="U.S.">
<option value="France">
<option value="China">
<option value="Cambodia">
<option value="Chile">
<option value="Canada">
<option value="Poland">
</datalist>
Country: