# @colineapp/liquid-glass > Liquid Glass for the web: the rim refraction, light and motion of iOS 27's glass on any rounded element, with React bindings and tabs whose thumb lifts into a lens. MIT. Version 0.1.0. Install: `npm install @colineapp/liquid-glass`. npm: https://www.npmjs.com/package/@colineapp/liquid-glass. Playground: https://liquid-glass.coline.space. ### isSelected - Type: `(tab: HTMLElement) => boolean` - Default: aria-selected, aria-checked or data-state="active" - Group: Tabs Whether a tab is selected. The thumb follows changes to the default attributes by itself; call `update()` after changes to anything else.