<label>South American countries</label><br>
<input list="countries" placeholder="Type a country">

<datalist id="countries">
  <option value="Argentina">
  <option value="Bolivia">
  <option value="Brazil">
  <option value="Chile">
  <option value="Colombia">
  <option value="Ecuador">
  <option value="Guyana">
  <option value="Paraguay">
  <option value="Peru">
  <option value="Suriname">
  <option value="Uruguay">
  <option value="Venezuela">
</datalist>