JSFiddle - React, Tailwind, and code Playground

HTML

<html>
  <body>
    <table>
      <tr>
        <td>
          <div class="content">
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
          </div>
          <div class="hack"></div>
        </td>
      </tr>
    </table>    

    <table>
      <tr>
        <td>
          <div class="content">
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
            <label><input type="checkbox"/>Hello! Hello!</label><br/>
          </div>
          <div class="hack"></div>
        </td>
      </tr>
    </table>
  </body>
</html>

CSS

table {
    float: left;
    margin-right: 1em;
    border: 1px solid black;
}

.content {
    float: left;
    width: 100%;
    overflow-y: auto;
    max-height: 15em;
}

.hack {
    float: left;
    width: 100%;
    overflow-y: scroll;   
    height: 0;
}