JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <thead>
      <tr>
        <th>Product:</th>
        <th>Product 1</th>
        <th>Product 2</th>
        <th>Product 3</th>
      </tr>
    </thead>
    <tbody>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
           </tr>
              <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
           </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
           </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
           </tr>
              <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
          </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
          </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
          </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
          </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
          </tr>
          <tr>
            <td>Features</td>
            <td>Product 1 features</td>
            <td>Product 2 features</td>
            <td>Product 3 features</td>
          </tr>
...

CSS

thead {
    height: 1em;
}

thead tr {
    position: fixed;
    background-color: #FFF;
}