This question explores Bootstrap and addresses practical considerations related to: How can I customize the default font size in Bootstrap without affecting other styles?

To customize the default font size in Bootstrap without affecting other styles, you can override the CSS variable for the root font size. This approach allows you to change the base font size while maintaining the overall design consistency of Bootstrap components. :root { --bs-body-font-size: 1.1rem; /* Customize the default font size */ } This is a paragraph with the customized font size. ADDITIONAL COMMENT: - This method uses CSS variables to change the base font size. - The `--bs-body-font-size` variable controls the default font size for Bootstrap's body text. - Adjust the value as needed to fit your design requirements. - This change will apply globally to all text that uses the default Bootstrap font size. ✅

How can I customize the default font size in Bootstrap without affecting other styles?

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How can I customize the default font size in Bootstrap without affecting other styles?

Asked on Feb 06, 2026

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To customize the default font size in Bootstrap without affecting other styles, you can override the CSS variable for the root font size. This approach allows you to change the base font size while maintaining the overall design consistency of Bootstrap components.

<!-- BEGIN COPY / PASTE -->
        <style>
            :root {
                --bs-body-font-size: 1.1rem; /* Customize the default font size */
            }
        </style>

        <p class="text-body">This is a paragraph with the customized font size.</p>
        <!-- END COPY / PASTE -->

Additional Comment:

This method uses CSS variables to change the base font size.
The `--bs-body-font-size` variable controls the default font size for Bootstrap's body text.
Adjust the value as needed to fit your design requirements.
This change will apply globally to all text that uses the default Bootstrap font size.

✅ Answered with Bootstrap 5 best practices.

Ask any question about Bootstrap here... and get an instant response.

How can I customize the default font size in Bootstrap without affecting other styles?

Asked on Feb 06, 2026

Answer

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