Home Web Front-end Bootstrap Tutorial How to read the bootstrap source code

How to read the bootstrap source code

Apr 07, 2025 pm 02:09 PM
css bootstrap git

To view the Bootstrap source code, clone or download the project on the GitHub repository. The main source files are located in the scss and js directories, organized by variables, components, and utilities, and run Bootstrap locally for debugging.

How to read the bootstrap source code

How to view Bootstrap source code

Bootstrap is a popular CSS framework for building responsive websites. Its source code can be used to further customize or solve problems.

step:

  1. Visit the Bootstrap GitHub repository: https://github.com/twbs/bootstrap
  2. Download or clone the repository:

    • Download: Click the "Download ZIP" button on the repository page.
    • Clone: ​​Use the Git command git clone https://github.com/twbs/bootstrap.git to clone the repository.
  3. Open the source code file:

    • Unzip the ZIP file or enter the cloned repository directory.
    • The main source code files are located in scss and js directories:

      • scss/bootstrap.scss : main Sass file
      • js/bootstrap.js : main JavaScript file

structure:

Bootstrap source code is organized by variables, components, and utilities.

Variable: Defines the default value of the framework. Defined in scss/_variables.scss .

Components: Provides pre-built components for building website elements. Each component has its own Sass and JavaScript files, for example:

  • scss/base/_alerts.scss and js/src/alert.js (alarm component)
  • scss/base/_buttons.scss and js/src/button.js (button component)

Utilities: Classes that provide common features such as float, positioning, and color. Defined in scss/_utilities.scss .

hint:

  • Use the search bar to find specific files or content.
  • Run Bootstrap locally to understand how it actually works and debug problems.
  • Understand the basics of Sass and JavaScript to better understand the source code.

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