Builds frosted-glass interface components using translucent backgrounds, background blur, subtle borders, and soft shadows. Provides shared CSS settings and examples for consistent cards, navigation bars, modals, and buttons, with guidance on readability and browser support.
Glassmorphism design system skill. Use when building frosted-glass UI components with blur, transparency, and layered depth effects.
Review the instructions the agent will receive before you install.
rgba() or hsla() with alpha 0.05–0.4backdrop-filter: blur() ranging 8–40px for frosted-glass effect1px solid rgba(255,255,255,0.18)) to define edgesbox-shadow for depth separation from backgroundReference: references/tokens.css
Use CSS custom properties from tokens.css for consistent theming:
@import 'references/tokens.css';
.glass-card {
background: var(--glass-bg);
backdrop-filter: var(--glass-blur);
-webkit-backdrop-filter: var(--glass-blur);
border: var(--glass-border);
border-radius: var(--glass-radius);
box-shadow: var(--glass-shadow);
}
.glass-card {
background: var(--glass-bg);
backdrop-filter: var(--glass-blur);
-webkit-backdrop-filter: var(--glass-blur);
border: var(--glass-border);
border-radius: var(--glass-radius);
box-shadow: var(--glass-shadow);
padding: 1.5rem;
}
.glass-nav {
background: var(--glass-bg-heavy);
backdrop-filter: var(--glass-blur-strong);
-webkit-backdrop-filter: var(--glass-blur-strong);
border-bottom: var(--glass-border);
box-shadow: var(--glass-shadow);
position: sticky;
top: 0;
z-index: 100;
}
.glass-modal-backdrop {
background: rgba(0, 0, 0, 0.4);
backdrop-filter: blur(4px);
}
.glass-modal {
background: var(--glass-bg-heavy);
backdrop-filter: var(--glass-blur-strong);
-webkit-backdrop-filter: var(--glass-blur-strong);
border: var(--glass-border);
border-radius: var(--glass-radius-lg);
box-shadow: var(--glass-shadow-elevated);
}
.glass-btn {
background: var(--glass-bg-light);
backdrop-filter: var(--glass-blur-light);
-webkit-backdrop-filter: var(--glass-blur-light);
border: var(--glass-border);
border-radius: var(--glass-radius);
transition: background 0.2s;
}
.glass-btn:hover {
background: var(--glass-bg);
}
| Feature | Chrome | Firefox | Safari | Edge |
|---|---|---|---|---|
backdrop-filter | 76+ | 103+ | 9+ (-webkit-) | 79+ |
rgba() backgrounds | All | All | All | All |
-webkit-backdrop-filter for Safari support@supports fallback with solid semi-transparent bg.glass-card {
background: rgba(255, 255, 255, 0.85); /* fallback */
}
@supports (backdrop-filter: blur(1px)) {
.glass-card {
background: var(--glass-bg);
backdrop-filter: var(--glass-blur);
}
}
prefers-reduced-transparency media query to disable blur/transparency for users who need itprefers-contrast: more to increase border opacity and reduce transparency@media (prefers-reduced-transparency: reduce) {
.glass-card {
background: rgba(255, 255, 255, 0.92);
backdrop-filter: none;
}
}
@media (prefers-contrast: more) {
.glass-card {
background: rgba(255, 255, 255, 0.85);
border: 1px solid rgba(0, 0, 0, 0.3);
}
}
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