JSFiddle - React, Tailwind, and code Playground

HTML

<table id=myTable>
  <tbody id=first>
    <tr><td>
      
    </td></tr>
  </tbody>
</table>

CSS

table {
    border-collapse: separate;
    border-spacing: 10px;
}

JavaScript

$('#myTable > tbody:last').append('<tr>...</tr><tr>...</tr>');