backdrop-filter
Effects
Filters whatever sits behind the element — this is what makes frosted glass.
| How to write it | backdrop-filter: none; |
|---|---|
| Common values | none, blur(8px), saturate(1.5) |
| Inherited | No — it stops at this element |
| Category | Effects |
How to read this
- An inherited property only needs writing once on the parent — every child picks it up. Most text properties work this way.
- A shorthand resets whatever you leave out. Writing background: red alone also wipes a background image you set earlier.
- When rules collide, the more specific selector wins; only when specificity ties does source order decide.
- Animate transform and opacity for smoothness. Changing width or top forces the layout to be recalculated.
Frequently asked questions
Q. What is the CSS backdrop-filter property?
Filters whatever sits behind the element — this is what makes frosted glass.
Q. How do you write backdrop-filter?
As backdrop-filter: none; Common values include none, blur(8px), saturate(1.5).
Q. Is backdrop-filter inherited?
No. It applies only where you write it, so each element needs its own declaration.
Q. What group does backdrop-filter belong to?
The effects group.