
flex.css is declarative layout which is compatible with wechat, UC, webview and other main-stream mobile browser and surpports react, vue, angular.
Flex.css is a powerful utility for managing flexible layouts in web development. It incorporates a collection of attributes that leverage the capabilities of the CSS Flexbox model, making it easier for developers to create responsive and adaptable designs. With flex.css, you can streamline your workflow and ensure consistency across different browsers and screen sizes.

Angular is a TypeScript-based open-source framework by Google for building dynamic single-page applications and cross-platform mobile apps with MVC architecture and a rich set of features.
React is a widely used JavaScript library for building user interfaces and single-page applications. It follows a component-based architecture and uses a virtual DOM to efficiently update and render UI components
Vue.js is a lightweight and flexible JavaScript framework that allows developers to easily build dynamic and reactive user interfaces. Its intuitive syntax, modular architecture, and focus on performance make it a popular choice for modern web development.
Gulp.js is an old but popular site building tool that automates various repetitive development tasks in web development, such as compiling Sass, minifying JavaScript, and optimizing images.