Bootstrap is a front-end framework for rapid development of web applications and websites. Bootstrap is based on HTML, CSS, and JAVASCRIPT.
Mobile-first: Starting with Bootstrap 3, the framework includes mobile-first styles throughout the library. (Recommended learning: Bootstrap video tutorial)
Browser support: All major browsers support Bootstrap.
Easy to get started: As long as you have basic knowledge of HTML and CSS, you can start learning Bootstrap.
Responsive design: Bootstrap’s responsive CSS can adapt to desktops, tablets, and mobile phones.
It provides a concise and unified solution for developers to create interfaces.
It contains powerful built-in components and is easy to customize.
It also provides web-based customization. It's open source.
Basic structure: Bootstrap provides a basic structure with a grid system, link styles, and background.
CSS: Bootstrap comes with the following features: global CSS settings, defining basic HTML element styles, extensible classes, and an advanced grid system.
Components: Bootstrap contains more than a dozen reusable components for creating images, drop-down menus, navigation, alert boxes, pop-up boxes, and more.
JavaScript Plugins: Bootstrap includes more than a dozen custom jQuery plugins. You can include all plug-ins directly or include them individually.
All plug-ins depend on jQuery, so jQuery must be quoted before the plug-in file.
Customization: You can customize Bootstrap components, LESS variables, and jQuery plugins to get your own version.
For more technical articles related to Bootstrap, please visit the Bootstrap Tutorial column to learn!
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Bootstrap is a framework developed by Twitter to help quickly build responsive, mobile-first websites and applications. 1. Ease of use and rich component libraries make development faster. 2. The huge community provides support and solutions. 3. Introduce and use class names to control styles through CDN, such as creating responsive grids. 4. Customizable styles and extension components. 5. Advantages include rapid development and responsive design, while disadvantages are style consistency and learning curve.

Bootstrapisafree,open-sourceCSSframeworkthatsimplifiesresponsiveandmobile-firstwebsitedevelopment.Itofferspre-styledcomponentsandagridsystem,streamliningthecreationofaestheticallypleasingandfunctionalwebdesigns.

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Bootstrap is an open source front-end framework, and its main function is to help developers quickly build responsive websites. 1) It provides predefined CSS classes and JavaScript plug-ins to facilitate the implementation of complex UI effects. 2) The working principle of Bootstrap relies on its CSS and JavaScript components to realize responsive design through media queries. 3) Examples of usage include basic usage, such as creating buttons, and advanced usage, such as custom styles. 4) Common errors include misspelling of class names and incorrectly introducing files. It is recommended to use browser developer tools to debug. 5) Performance optimization can be achieved through custom build tools, best practices include predefined using semantic HTML and Bootstrap

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Bootstrap is an open source front-end framework for rapid development of responsive websites and applications. 1. It provides the advantages of responsive design, consistent UI components and rapid development. 2. The grid system uses flexbox layout, based on 12-column structure, and is implemented through classes such as .container, .row and .col-sm-6. 3. Custom styles can be implemented by modifying SASS variables or overwriting CSS. 4. Commonly used JavaScript components include modal boxes, carousel diagrams and folding. 5. Optimization performance can be achieved by loading only necessary components, using CDN, and compressing merge files.


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