# Glassmorphism CSS Snippet Builder End-to-end frosted-glass / neumorphism CSS snippet generator: blur+saturate backdrop, tint, border, layered shadows, grain overlay, @supports fallback, -webkit- prefix, Tailwind mapping and live preview. > Canonical page: https://elysiatools.com/en/tools/glassmorphism-css-snippet-builder - **Category:** Design - **Keywords:** glassmorphism, neumorphism, backdrop-filter, frosted glass, css generator, glass card ## Overview Defaults follow the verified 2025 composite (css.glass lineage): rgba tint 0.10–0.30, blur 4–20px with saturate(120–180%) against blur muddiness, 1px rgba border, outer shadow plus inset 0 1px 0 rgba(255,255,255,.3) top highlight. backdrop-filter sits at 95.69% global support; Safari requires -webkit- through 17.x (unprefixed since 18, 2024) and Firefox since 103 — the snippet always emits both declarations. Grain uses an SVG feTurbulence fractalNoise data-URI on ::before at opacity 0.12; @supports not (backdrop-filter) falls back to a near-opaque tint. Tailwind mapping prefers named utilities (backdrop-blur-xl = 24px, rounded-2xl = 16px) and falls back to arbitrary values, with the v3/v4 blur-sm 4px→8px shift flagged. Neumorphism follows neumorphism.io: background matching the page, dark shadow bottom-right + light top-left, inset = pressed, dark mode with light shadow at 0.03–0.1; shadows do not count toward contrast, so keep it off primary controls. ## Inputs - **Style** (select) - **Backdrop blur (px)** (number) - **Backdrop saturate (%)** (number) - **Glass tint color** (color) - **Glass tint opacity** (number) - **Border radius (px)** (number) - **Border width (px, glass only)** (number) - **Border opacity (glass only)** (number) - **Outer shadow opacity (glass only)** (number) - **Top-edge highlight (inset)** (checkbox) - **Grain / noise overlay** (checkbox) - **@supports fallback** (checkbox) - **Neu background color** (color) - **Neu shadow distance (px)** (number) - **Neu pressed (inset) state** (checkbox) - **Neu dark mode** (checkbox) ## When to use - When you need a glassmorphism card, modal or overlay with blur, saturate and a translucent tint. - When you want a neumorphic surface that matches the page background with dark and light shadows. - When you need a copy-ready snippet that already includes Safari prefixes, a fallback and Tailwind utilities. ## How it works - Pick glassmorphism or neumorphism, then set blur, saturate, tint color and opacity, radius and shadow values. - Toggle top-edge highlight, grain overlay, @supports fallback and, for neumorphism, pressed or dark mode. - The builder emits CSS with both backdrop-filter and -webkit-backdrop-filter, optional ::before grain, a fallback tint and Tailwind mapping. - A live HTML preview shows the card on a gradient so you can copy the snippet as-is. ## Use cases - Frosted-glass cards and panels over hero gradients - Soft neumorphic controls in light or dark themes - Reusable CSS and Tailwind tokens for backdrop effects ## Frequently asked questions ### What styles can I generate? Glassmorphism (frosted glass with backdrop-filter) or neumorphism (soft UI with matching background and dual shadows). ### Does the snippet include Safari prefixes? Yes. It always outputs both backdrop-filter and -webkit-backdrop-filter for Safari through 17.x. ### How does Tailwind mapping work? It prefers named utilities such as backdrop-blur-xl and rounded-2xl, then falls back to arbitrary values. The v3/v4 blur-sm change is flagged. ### What happens without backdrop-filter support? When @supports fallback is on, the snippet uses a near-opaque tint so the card stays readable. ### Should I use neumorphism on primary buttons? 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