Glassmorphism CSS Generator
Create frosted glass UI effects instantly. Adjust blur, opacity, border, shadow, and border radius using the live controls below. The CSS updates in real time so you can see exactly what your design will look like before copying the code.
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Frequently Asked Questions
What browsers support backdrop-filter?
Chrome 76+, Edge 79+, Safari 9+ (with `-webkit-` prefix), and Firefox 103+ all support `backdrop-filter`. The generated CSS includes both the standard and `-webkit-` prefixed versions to cover Safari. For very old browsers that do not support the property, the element will still display with the background color and border — the blur simply will not appear.
Why does the effect not show on a white or solid background?
Glassmorphism only works against a non-white, visually distinct background. On a plain white page the blur produces white, and the semi-transparent background color produces a near-white tint, making the effect invisible. You need a colorful or textured background behind the element for the frosted glass look to appear.
Can I use this effect on images
Yes. If you place a glass-styled `div` on top of a background image, the `backdrop-filter` will blur the image showing through. This is a common technique for image-heavy hero sections.
Do I need to use the `.glass` class name?
No. The generated CSS uses `.glass` as the selector, but you can rename it to anything that fits your project. The properties themselves are what matter.
How do I apply this to a specific element?
Add the CSS to your stylesheet, then apply the class to any HTML element. For example:
```html
```
Will this work in CSS frameworks like Tailwind or Bootstrap?
Yes. The generated CSS is plain CSS and works alongside any framework. In Tailwind you can also replicate the effect using utilities like `backdrop-blur-md`, `bg-white/20`, and `border-white/20`.
Why is my glass card not showing the blur effect in Firefox?
Firefox supports `backdrop-filter` from version 103 onward with no flags required. If you are using an older version of Firefox, the blur will not apply. Upgrade to the latest version or add a fallback background with higher opacity.