<label for="ice-cream-choice">Choose an ice cream flavor:</label>
<input list="ice-cream-flavors" id="ice-cream-choice" name="ice-cream-choice" />

<datalist id="ice-cream-flavors">
  <option value="Rocky Road">
  <option value="Dark Choc">
  <option value="Mint Chip">
  <option value="Peanut Butter Cup">
  <option value="Chocolate">
  <option value="Coconut">
  <option value="Mint">
  <option value="Strawberry">
  <option value="Vanilla">
  <option value="Soy Vanilla">
</datalist>

body {
  padding: 5rem 1rem 1rem 1rem;
  max-width: 600px;
  margin: auto;
}