Borders In Bootstrap With Examples

Posted By Bajarangi soft , Posted On 10-10-2020

Borders: Borders are generally used to display an outline around a box or table cell or any other HTML element. In Bootstrap, there are different classes available to add or remove borders. The classes that are used to add borders are referred as Additive classes and those that are used to remove borders are referred as subtractive classes.

Additive Border Classes:

.border : This class adds a border all around the element.
.border-top : This class adds a border on the top edge of the element.
.border-left : This class adds a border on the left edge of the element.
.border-right : This class adds a border on the right of the element.
.border-bottom : This class adds a border on the bottom of the element.

Subtractive Border Classes:

.border-0 : This class removes border from all around the element if exists.
.border-top-0 : This class removes the border from the top edge of the element if exists.
.border-left-0 : This class removes the border from the left edge of the element if exists.
.border-right-0 : This class removes the border from the right of the element if exists.
.border-bottom-0 : This class removes the border from the bottom of the element if exists.

Example

<!-- Bootstrap Borders -->
<!DOCTYPE html>
<html>
<head>
    <title>Bootstrap Example</title>

    <!-- Link Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">

    <!-- Link Bootstrap JS and JQuery -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
    <style>
        /* CSS for Square boxes */
        span {
            display: inline-block;
            width: 70px;
            height: 70px;
            margin: 6px;
            background-color: #DCDCDC;
        }
    </style>
</head>

<body>

<!-- Additive border classes -->
<!-- Note: border-dark class is used to add
        black color to border -->
<div class="container">
    <h2>Additive Border Classes</h2>
    <span class="border border-dark"></span>
    <span class="border-top border-dark"></span>
    <span class="border-right border-dark"></span>
    <span class="border-bottom border-dark"></span>
    <span class="border-left border-dark"></span>
</div>

<!-- Subtractive border classes -->
<!-- Note: border-dark class is used to add
        black color to border -->
<div class="container">
    <h2>Subtractive Border Classes</h2>
    <span class="border border-dark"></span>
    <span class="border border-0 border-dark"></span>
    <span class="border border-top-0 border-dark"></span>
    <span class="border border-right-0 border-dark"></span>
    <span class="border border-bottom-0 border-dark"></span>
    <span class="border border-left-0 border-dark"></span>
</div>

</body>
</html>