JSFiddle - React, Tailwind, and code Playground

HTML

<table> 
 <tbody> 
  <tr class="blinkYellow"> 
   <td>Col 1</td> 
   <td>Col 2</td> 
   <td>Col 3</td> 
  </tr> 
  <tr> 
   <td>Col 1</td> 
   <td>Col 2</td> 
   <td>Col 3</td> 
  </tr> 
  <tr class="blinkYellow"> 
   <td>Col 1</td> 
   <td>Col 2</td> 
   <td>Col 3</td> 
  </tr> 
 </tbody> 
</table>

CSS

.background-color-yellow { background-color: yellow; }

JavaScript

$(document).ready(function(){ 
 setInterval(findYellow,1000);     
 function findYellow(){ 
  $("tr.blinkYellow").each(function(){ 
       $(this).toggleClass("background-color-yellow");
     })
    }
});