Bootstrap 5 Table borders classes are used to set or unset the border of the table. With bootstrap 5 table borders are easy to customize with border or no border.
- Bordered tables: This is used to set the border on each side of the table.
- Tables without borders: This is used to make the table borderless all over the table like there will be no row and column divider.
Syntax:
<table class="table *"> ... </table>
Here * can be table-bordered or table-borderless.
Example 1: In this example, we will create bordered table.
<!DOCTYPE html>
<html>
<head>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC"
crossorigin="anonymous">
</head>
<body class="m-3">
<center>
<h1 class="text-success">
GeeksforGeeks
</h1>
<strong>Bootstrap 5 Tables Borders</strong>
</center>
<table class="table table-bordered">
<thead>
<tr>
<th scope="col">No</th>
<th scope="col">Course</th>
<th scope="col">Price</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">1</th>
<td>HTML- Basics</td>
<td>$29</td>
</tr>
<tr>
<th scope="row">2</th>
<td>CSS- Basics</td>
<td>$25</td>
</tr>
<tr>
<th scope="row">3</th>
<td>JS- Basics</td>
<td>$35</td>
</tr>
</tbody>
</table>
</body>
</html>
Output:

Example 2: In this example, we will use a borderless table.
<!DOCTYPE html>
<html>
<head>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC"
crossorigin="anonymous">
</head>
<body class="m-3">
<center>
<h1 class="text-success">
GeeksforGeeks
</h1>
<strong>Bootstrap 5 Tables Borders</strong>
</center>
<table class="table table-borderless">
<thead>
<tr>
<th scope="col">No</th>
<th scope="col">Course</th>
<th scope="col">Price</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">1</th>
<td>HTML- Basics</td>
<td>$29</td>
</tr>
<tr>
<th scope="row">2</th>
<td>CSS- Basics</td>
<td>$25</td>
</tr>
<tr>
<th scope="row">3</th>
<td>JS- Basics</td>
<td>$35</td>
</tr>
</tbody>
</table>
</body>
</html>
Output:

Reference: https://getbootstrap.com/docs/5.0/content/tables/#table-borders