Nuxt Ui Guideline: Installation — Import Tailwind and Nuxt UI CSS. Description: Required CSS imports in main.css file. Do: @import tailwindcss and @import @nuxt/ui. Don't: Skip CSS imports. Good Example: @import "tailwindcss"; @import "@nuxt/ui";. Bad Example: No CSS imports. Severity: High. Docs: https://ui.nuxt.com/docs/getting-started/installation/nuxt.