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すりガラス効果（Glassmorphism）CSSジェネレーター
すりガラス効果（Glassmorphism）CSSジェネレーター
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コアアーキテクチャ & 計算式
Glass UI = background: rgba() + backdrop-filter: blur() + border: 1px solid rgba()
The core mechanic of Glassmorphism relies on the `backdrop-filter` property, which applies visual effects (like Gaussian blurs) to the area exactly *behind* the element, rather than the element itself.
ベストプラクティスとガイドライン
- Ensure Sufficient Background Contrast: A frosted glass card placed over a plain white background just looks like a gray box. Glassmorphism requires vibrant, complex underlying mesh gradients or images to refract through the blur.
- Add a Subtle 1px Inner Border: To create the physical illusion of a glass pane catching the light, always apply a 1px solid border using a highly transparent white (e.g., `rgba(255, 255, 255, 0.2)`).
- Provide Fallbacks for Older Browsers: Some legacy browsers (and certain aggressive power saving modes on mobile) disable `backdrop-filter`. Always provide a solid fallback background color so your text remains legible.
よくある質問 (FAQ)
Why is my glass card making the text blurry?
You likely used the standard `filter: blur()` property instead of `backdrop-filter: blur()`. Standard filters blur the element and all its children (including text), whereas backdrop filters only blur what is *behind* the element.
Does Glassmorphism drain battery life?
It can. Calculating real time Gaussian blurs over dynamic content requires heavy GPU compositing. Use it sparingly on critical UI components (like navbars or modals) rather than massive full screen overlays.
How do I make the glass look more realistic?
Combine the blur with a slight color tint (usually white or dark gray at 10 percent opacity) and a multi layered `box-shadow` that mimics ambient light passing through the translucent surface.