JSFiddle - React, Tailwind, and code Playground
HTML
<form action="/" method="post">
<input type="tel" name="phoneNumber" placeholder="Telefonnr. mit Vorwahl" value="">
</form>
<form action="/" method="post">
<input type="tel" name="phoneNumber" placeholder="Telefonnr. mit Vorwahl" value="">
</form>