backdrop-filter

The backdrop-filter property applies graphical effects to the area behind a translucent element.

Since CSS3 Spec ↗

Syntax

backdrop-filter: <function>...;  /* e.g. blur(10px) */

Examples

.glass-nav {
  background: rgb(255 255 255 / 0.6);
  backdrop-filter: blur(12px) saturate(1.5);
}
Output
Renders a frosted-glass navigation bar that blurs and saturates the content scrolling behind it.

Notes

Requires a semi-transparent background to be visible. It is the basis of the "glassmorphism" effect. Can be performance-heavy on large areas; provide a solid-background fallback for unsupported browsers.

Browser & runtime support

EnvironmentSince version
chrome 76
firefox 103
safari 9.0
edge 79

See also