
Description: Variable Grid System is an open-source, flexible grid framework for responsive web design. It allows developers to build fluid grid layouts that adapt to any screen size or device. The system uses Sass variables to customize column counts, gutter widths, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tailwind CSS is an open-source CSS framework that focuses on utility-first classes to enable rapid UI development. It allows developers to build custom user interfaces without writing custom CSS by providing pre-defined classes for typography, spacing, color, layout, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API