<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
table, th, td{
border: 1px solid #8c8c8c;
border-collapse: collapse;
}
</style>
</head>
<body>
<table>
<thead>
<tr>
<th scope="col">S.No</th>
<th scope="col">Students</th>
<th scope="col">Mark</th>
</tr>
</thead>
<tbody>
<tr>
<td scope="row">1</td>
<td>Brendon</td>
<td>28.25</td>
</tr>
<tr>
<td scope="row">2</td>
<td>Eich</td>
<td>30.75</td>
</tr>
</tbody>
</table>
</body>
</html>