#css

A code comparison showing a CSS rule with both backdrop-filter and -webkit-backdrop-filter before minification, and only -webkit-backdrop-filter surviving after Vite 8's default Lightning CSS minification

Fix Vite 8 Lightning CSS Dropping backdrop-filter

Fix Vite 8's Lightning CSS minifier silently dropping unprefixed backdrop-filter in production builds. One cssMinify config line restores it.

Aug 5, 2026Read more →