Custom CSS

In this approach, CSS rules override Bootstrap’s default styles. Custom CSS can be applied to specific components or globally across the project. This HTML document uses Bootstrap for styling. It customizes button styles with rounded corners and bold text. It includes two buttons styled with Bootstrap’s “btn” classes. The Bootstrap JavaScript bundle enhances component functionality.

Example: The example below shows how to customize Bootstrap 5 using Custom CSS.

HTML
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" 
          content="width=device-width, initial-scale=1.0">
    <title>Custom CSS Example</title>
    <link rel="stylesheet" href=
"https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css">
    <style>
        /* Custom CSS to override Bootstrap's default button styles */
        .btn {
            border-radius: 20px;
            font-weight: bold;
        }
    </style>
</head>

<body>
    <div class="container my-5">
        <h1>Custom CSS Example</h1>
        <button type="button" 
                class="btn btn-success">
          Success Button
          </button>
        <button type="button" 
                class="btn btn-secondary">
          Secondary Button
          </button>
    </div>

    <script src=
"https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js">
      </script>
</body>

</html>

Output:

Customize Bootstrap 5 with Custom CSS

How to Customize Bootstrap 5?

To customize Bootstrap 5, adjust its appearance by using custom CSS to modify default styles or by utilizing Sass variables to customize design elements like colors, typography, and spacing. These methods enable you to control your project’s visual presentation.

Table of Content

  • Custom CSS
  • Modifying Sass Variables

Similar Reads

Custom CSS

In this approach, CSS rules override Bootstrap’s default styles. Custom CSS can be applied to specific components or globally across the project. This HTML document uses Bootstrap for styling. It customizes button styles with rounded corners and bold text. It includes two buttons styled with Bootstrap’s “btn” classes. The Bootstrap JavaScript bundle enhances component functionality....

Using Sass Variables

Bootstrap 5 is built with Sass, a powerful CSS preprocessor. By modifying Bootstrap’s Sass variables, developers can change fundamental aspects of the framework, such as colors, typography, and layout settings. This approach allows for more comprehensive customization and ensures consistency throughout the project....