JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>Home</title>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width" />
    <link rel="stylesheet" href="styles.css" />
    <script type="module" src="script.js"></script>
  </head>
  <body>
    <div class="top">
      <table>
        <thead>
          <tr>
            <th colspan="2">The table header</th>
          </tr>
        </thead>
        <tbody>
          <tr>
            <td>The table body</td>
            <td>with two columns</td>
          </tr>
        </tbody>
      </table>
     
      
    </div>
    <div class="bottom">
       <div>
        <div><span class="red">Red</span></div>
        <div><span class="green">Green</span></div>
        <div><span class="blue">Blue</span></div>
      </div>
    </div>
  </body>
</html>

CSS

.top {
  position: relative;
}
.bottom {
  position: relative;
}
table,
td {
  border: 1px solid #333;
  z-index: 0;
  position: relative;
  background-color: #fff;
}
thead,
tfoot {
  background-color: #333;
  color: #fff;
}
.red,
.green,
.blue {
  position: absolute;
  width: 100px;
  color: white;
  line-height: 100px;
  text-align: center;
}
.red {
  z-index: 1;
  top: -40px;
  left: 20px;
  background: red;

}
.green {
  top: -20px;
  left: 60px;
  background: green;
  z-index: -3;
}
.blue {
  top: -10px;
  left: 100px;
  background: blue;
  z-index: -2;
}