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 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:
- Visit the Bootstrap GitHub repository: https://github.com/twbs/bootstrap
-
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.
-
Open the source code file:
- Unzip the ZIP file or enter the cloned repository directory.
-
The main source code files are located in
scss
andjs
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
andjs/src/alert.js
(alarm component) -
scss/base/_buttons.scss
andjs/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.
The above is the detailed content of How to read the bootstrap source code. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

CSS blocks page rendering because browsers view inline and external CSS as key resources by default, especially with imported stylesheets, header large amounts of inline CSS, and unoptimized media query styles. 1. Extract critical CSS and embed it into HTML; 2. Delay loading non-critical CSS through JavaScript; 3. Use media attributes to optimize loading such as print styles; 4. Compress and merge CSS to reduce requests. It is recommended to use tools to extract key CSS, combine rel="preload" asynchronous loading, and use media delayed loading reasonably to avoid excessive splitting and complex script control.

AnimatingSVGwithCSSispossibleusingkeyframesforbasicanimationsandtransitionsforinteractiveeffects.1.Use@keyframestodefineanimationstagesforpropertieslikescale,opacity,andcolor.2.ApplytheanimationtoSVGelementssuchas,,orviaCSSclasses.3.Forhoverorstate-b

TocloneaGitrepository,ensureGitisinstalledbycheckingwithgit--versionandinstallingifneeded.(1)Setupyourusernameandemailusinggitconfig.(2)UsegitclonefollowedbytherepositoryURLtocreatealocalcopy.(3)Forprivaterepos,useSSHwithanaddedkey.(4)Optionallyspeci

Grayscale Digital Market refers to the overall performance of Grayscale Investment’s digital asset trust funds, and its core includes single asset trusts and compound funds. 1. "Grayscale" refers to Grayscale Investments, which has trust products such as GBTC and ETHE; 2. "Digital Market" refers to GDLC funds that track mainstream crypto assets in a narrow sense, and covers the overall performance of all trust products in Grayscale. Reasons to pay attention to the Grayscale Digital Market include: 1. Changes in its holdings reflect institutional investors' tendency to allocate cryptocurrencies; 2. Premium or discount fluctuations in trust products affect market sentiment; 3. As a compliance channel regulated by SEC, its trends have policy reference value.

Autoprefixer is a tool that automatically adds vendor prefixes to CSS attributes based on the target browser scope. 1. It solves the problem of manually maintaining prefixes with errors; 2. Work through the PostCSS plug-in form, parse CSS, analyze attributes that need to be prefixed, and generate code according to configuration; 3. The usage steps include installing plug-ins, setting browserslist, and enabling them in the build process; 4. Notes include not manually adding prefixes, keeping configuration updates, prefixes not all attributes, and it is recommended to use them with the preprocessor.

LightchainAI is currently in the reward round stage, providing investors with the opportunity to finally obtain LCAI tokens before the main network is launched in July 2025. The platform has raised US$21.1 million so far, and its independently developed AI virtual machines are attracting great attention in the industry. The development momentum of decentralized artificial intelligence is becoming increasingly strong, and LightchainAI is becoming the focus with its unique innovation model. With the launch date of the main network locked in July 2025, the reward rounds currently open to the platform have become an important window for investors to enter the market. Let's take a look at the core highlights of LightchainAI and why it is attracting much attention. LightchainAI: Promoting the Development of Decentralized AI Lightc

Theconic-gradient()functioninCSScreatescirculargradientsthatrotatecolorstopsaroundacentralpoint.1.Itisidealforpiecharts,progressindicators,colorwheels,anddecorativebackgrounds.2.Itworksbydefiningcolorstopsatspecificangles,optionallystartingfromadefin

Ripple is redefining the future landscape of the financial industry by applying for a national bank license and promoting XRP’s new role in the crypto economy. Master the latest trends and in-depth observations and seize the trend opportunities. The cryptocurrency ecosystem is in rapid evolution, and Ripple and its digital asset XRP are undoubtedly at the center of the storm. A series of actions carried out in the US banking system are attracting widespread attention. All this development seems to be a real financial drama, gradually beginning! Ripple's banking industry aspirations are roughly the key to Ripple CEO Brad Garlinghouse is no longer content with the boundaries of traditional fintech. As a key step in strategic upgrades, Ripple
