What is css framework in html

In HTML, a CSS framework refers to a set of predefined CSS styles and layout rules used to speed up web development and provide consistent appearance and interaction. .

The following are some common CSS frameworks used in HTML:

1. Bootstrap: Bootstrap is a popular front-end CSS framework that provides a set of responsive The grid system, CSS styles, JavaScript plug-ins, etc. can easily build various types of web pages and web applications.

2. Foundation: Foundation is another popular front-end CSS framework that also provides a responsive grid system, styles, components and tools to help developers quickly build modern websites.

3. Bulma: Bulma is a lightweight CSS framework that provides a simple set of style and layout rules, and also supports responsive design and flexible grid systems.

4. Semantic UI: Semantic UI is a semantic CSS framework that provides easy-to-understand and use class names to define web page elements, with flexible customization options.

These CSS frameworks can be used by introducing the corresponding CSS files into the HTML page or using CDN links. They provide a variety of predefined styles and components, such as buttons, navigation bars, forms, etc., allowing developers to more quickly build web pages with modern looks and interactive effects. Choosing which CSS framework to use depends on personal preference, project needs, and development team specifications.