JSFiddle - React, Tailwind, and code Playground

HTML

<div id="d1" class="line1">blib blab blub </div>

<br /> <br /> <hr />

CSS

body {
    padding:15px;
}

div {
    border: 1px solid #000000;
    padding:5px;
    background-color:#EFEFEF;
    margin:5px;
}

JavaScript

$(function() {

      // hit_id = $(".line1").find("blab").attr('id');
         hit_id = $(".line1").match(/blab/).attr('id');    

         $('body').append(' - '+hit_id+' - ');
});