Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Ionic - Ionic is a cross-platform mobile development stack for building performant apps on all platforms with open web technologies.
Apache Cordova - Platform for building native mobile applications using HTML, CSS and JavaScript
Kendo UI - Fast, light, complete: 70+ jQuery-based UI widgets in one powerful toolset
NativeScript - Build truly native apps with JavaScript
Onsen UI - HTML5 Hybrid Mobile App UI Framework - work with Angular, React, Vue, Meteor & pure JavaScript. Material & Flat design.