JSFiddle - React, Tailwind, and code Playground

by Fairlight

HTML

<table border=1 bgColor=skyblue> 
<th bgcolor="#ffffff">
  <td bgcolor="#ff00ff">A</td><td bgcolor="#ff00ff">B</td>
</th>


<tr>
<td></td><td>北海道：札幌市</td> <td>青森県：青森市</td></tr> 
<tr height="40px"></tr>
<tr>
<td></td><td>岩手県：盛岡市</td><td>宮城県：仙台市</td></tr>
<tr height="40px"></tr>
</table>