<!DOCTYPE html>
<html>
<body>
<form action="action_page.php">
Webpage: <input type="url" list="url_list" name="link">
<datalist id="url_list">
<option label="W3Schools" value="http://www.w3ii.com">
<option label="Google" value="http://www.google.com">
<option label="Microsoft" value="http://www.microsoft.com">
</datalist>
<input type="submit">
</form>
</body>
</html>