HTML Demo: <th>

<table>
    <caption>Alien football stars</caption>
    <tr>
        <th scope="col">Player</th>
        <th scope="col">Gloobles</th>
        <th scope="col">Za'taak</th>
    </tr>
    <tr>
        <th scope="row">TR-7</th>
        <td>7</td>
        <td>4,569</td>
    </tr>
    <tr>
        <th scope="row">Khiresh Odo</th>
        <td>7</td>
        <td>7,223</td>
    </tr>
    <tr>
        <th scope="row">Mia Oolong</th>
        <td>9</td>
        <td>6,219</td>
    </tr>
</table>

td,
th {
    border: 1px solid rgb(190, 190, 190);
    padding: 10px;
}

td {
    text-align: center;
}

tr:nth-child(even) {
    background-color: #eee;
}

th[scope="col"] {
    background-color: #696969;
    color: #fff;
}

th[scope="row"] {
    background-color: #d7d9f2;
}

caption {
    padding: 10px;
    caption-side: bottom;
}

table {
    border-collapse: collapse;
    border: 2px solid rgb(200, 200, 200);
    letter-spacing: 1px;
    font-family: sans-serif;
    font-size: .8rem;
}

Output