Borders

 <span className="border border-primary border-container"></span>
 <span className="border-top border-primary border-container"></span>
 <span className="border-end border-primary border-container"></span>
 <span className="border-bottom border-primary border-container"></span>
 <span className="border-start border-primary border-container"></span>
Remove borders

 <span className="border-0 border-primary border-container"></span>
 <span className="border border-primary border-top-0 border-container"></span>
 <span className="border border-primary border-end-0 border-container"></span>
 <span className="border border-primary border-bottom-0 border-container"></span>
 <span className="border border-primary border-start-0 border-container"></span>
Border Widths

 <span className="border border-primary border-container border-1"></span>
 <span className="border border-primary border-container border-2"></span>
 <span className="border border-primary border-container border-3"></span>
 <span className="border border-primary border-container border-4"></span>
 <span className="border border-primary border-container border-5"></span>
Border colors

<span className="border border-container border-primary"></span>
<span className="border border-container border-secondary"></span>
<span className="border border-container border-success"></span>
<span className="border border-container border-danger"></span>
<span className="border border-container border-warning"></span>
<span className="border border-container border-info"></span>
<span className="border border-container border-light"></span>
<span className="border border-container border-dark"></span>
<span className="border border-container border-white"></span>
Border color Styling
Below Shows Danger Border
Customizing borders with background colors

 <div className="mb-4">
 <label htmlFor="exampleFormControlInput1" className="form-label">Email
     address</label>
 <input type="email" className="form-control border-success"
     id="exampleFormControlInput1" placeholder="name@example.com"/>
</div>
<div className="h4 pb-3 mb-4 text-danger border-bottom border-danger">
 Below Shows Danger Border
</div>
<div
 className="p-3 bg-info bg-opacity-10 border border-info border-start-0 rounded-end mb-1">
 Customizing borders with backgrounud colors
</div>
Border with opacity
This is default success border
This is 75% opacity success border
This is 50% opacity success border
This is 25% opacity success border
This is 10% opacity success border

  <div className="border border-success p-2 mb-2">This is default success border</div>
  <div className="border border-success p-2 mb-2 border-opacity-75">This is 75%
      opacity
      success border
  </div>
  <div className="border border-success p-2 mb-2 border-opacity-50">This is 50%
      opacity
      success border
  </div>
  <div className="border border-success p-2 mb-2 border-opacity-25">This is 25%
      opacity
      success border
  </div>
  <div className="border border-success p-2 border-opacity-10">This is 10% opacity
      success
      border
  </div>
Border Radius

<span className="border border-primary border-container rounded"></span>
<span className="border border-primary border-container rounded-top"></span>
<span className="border border-primary border-container rounded-end"></span>
<span className="border border-primary border-container rounded-bottom"></span>
<span className="border border-primary border-container rounded-start"></span>
<span className="border border-primary border-container rounded-circle"></span>
<span className="border border-primary border-container rounded-pill"></span>
Sizes

<span className="border border-primary border-container rounded-0"></span>
<span className="border border-primary border-container rounded-1"></span>
<span className="border border-primary border-container rounded-2"></span>
<span className="border border-primary border-container rounded-3"></span>
<span className="border border-primary border-container rounded-4"></span>
<span className="border border-primary border-container rounded-5"></span>
</Card.Body>