JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <thead>
      <tr>
        <th style="background-color: lightblue; width: 600px;>
          <div>
            <span style="display: inline-block; height:20px; background-color: red; margin: 5px 3px;">
              Button
            </span>
            
            <span style="display: inline-block; height:20px; background-color: red; margin: 5px 3px;">
              Button
            </span>
            
            <span style="display: inline-block; height:20px; background-color: red; margin: 5px 3px; float:right;">
              Button right
            </span>
        </div>
        </th>
      </tr>
    </thead>
    <tbody>
      <tr><td></td></tr>
    </tbody>
  </table>