JSFiddle - React, Tailwind, and code Playground

HTML

<input type="tel" id="phone" name="phone" placeholder="Введите ваш телефон">


<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.maskedinput/1.4.1/jquery.maskedinput.min.js"></script>

JavaScript

$(function($) {
		$("#phone").mask("+",{placeholder:"+"});
});