How do I override Bootstrap CSS safely using the Cascade layers approach?

Asked on Jul 21, 2025

1 Answer

To safely override Bootstrap CSS using the Cascade layers approach, you can define your custom styles in a separate stylesheet and load it after the Bootstrap CSS file. This ensures your custom styles take precedence due to the cascade order.

<!-- BEGIN COPY / PASTE -->
        <!-- Link to Bootstrap CSS -->
        <link href="https://stackpath.bootstrapcdn.com/bootstrap/5.3.0/css/bootstrap.min.css" rel="stylesheet">

        <!-- Your custom CSS -->
        <style>
            /* Example: Override Bootstrap's primary button color */
            .btn-primary {
                background-color: #ff5733; /* Custom color */
                border-color: #ff5733; /* Custom border color */
            }
        </style>
        <!-- END COPY / PASTE -->

Additional Comment:

Load your custom CSS after the Bootstrap CSS to ensure it takes precedence.
Use specific selectors to override Bootstrap styles effectively.
Test your changes across different components to ensure consistency.

✅ Answered with Bootstrap 5 best practices.

← Back to All Questions