enquire.js : A lightweight, pure JavaScript library for responding to CSS media queries.
css3-mediaqueries-js : make CSS3 Media Queries work in all browsers (JavaScript library)
Ink : Ink provides the same component-based UI building experience that React offers in the browser, but for command-line apps. It uses Yoga to build Flexbo...
Photon : UI toolkit for building desktop apps with Electron.
darken : Easy control over your dark mode in a web environment
A dynamic layout plugin for jQuery
The flip-side of CSS floats