Muhammad Asad.
All skills

Web & Frontend

Bootstrap

Latestv5.3.8Updated Aug 25, 2025

Overview

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains HTML, CSS and (optionally) JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

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How it works

html
<div class="container">
  <button class="btn btn-primary">Save</button>
</div>

The flow

Step by step, from source to running.

  1. 1Include Bootstrap CSS/JS
  2. 2Compose prebuilt components
  3. 3Grid + utilities handle layout
  4. 4Responsive across breakpoints

Latest changes

v5.3.8 · Aug 25, 2025

  • Streamline release prep script in https://github.com/twbs/bootstrap/pull/41539
  • Docs: restore local dev port to 9001 in https://github.com/twbs/bootstrap/pull/41545
  • Docs: use Example shortcode instead of divs with only .bd-example class in https://github.com/twbs/bootstrap/pull/41556
  • Docs: fix scss autorecompile in dev mode in https://github.com/twbs/bootstrap/pull/41574
  • Fix color-contrast() function for WCAG 2.1 compliance in https://github.com/twbs/bootstrap/pull/41585

Links

WebsiteDocumentationSource code

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