JSFiddle - React, Tailwind, and code Playground

HTML

<div class="rate_num">rate_num</div>
<div class="rate">rate</div>

JavaScript

$('.rate').hover(
    function(){
        $('.rate_num').css("border", "1px solid #ADBCCB" );
    },
    function(){
        $('.rate_num').css("border", "none" );           
    }
);