# mri-fivem-liquid-glass > Real liquid glass and game blur for FiveM NUI: blurs and refracts the live GTA V frame behind your HTML elements, where CSS backdrop-filter cannot see the game. Install with `npm i mri-fivem-liquid-glass`, call `startGameGlass()` once, mark elements with `data-glass` or `data-glass="liquid"`. Keep html, body and the UI root transparent, put the UI root above the glass canvas (position: relative; z-index: 1) and never use backdrop-filter on glass elements. ## Recipe: replace backdrop-filter in a FiveM NUI Follow these steps in order when asked to replace backdrop-filter (or add glass) in a FiveM resource. The library only sees the game frame, so it is for glass whose backdrop is the game. 1. Find the NUI: the `ui_page` in `fxmanifest.lua`, and its source if it is built (Vite, React, Vue, Svelte) or plain HTML. 2. Install: with a bundler run `npm i mri-fivem-liquid-glass`; for plain HTML copy `node_modules/mri-fivem-liquid-glass/dist/mri-liquid-glass.iife.min.js` (or download it from the CDN) next to the page, add a `