# Isolation

Set whether an element must create a new stacking context.

**Widely available.** This feature is well established and works across many devices and browser versions.

Chrome 41 · Edge 79 · Firefox 36 · Safari 8

| Class | Properties | Value |
|-------|------------|-------|
| `is:auto` | isolation | `auto` |
| `is:i` | isolation | `isolate` |

### Media Queries

Prefix a class with a breakpoint to apply it from that width up.

| Class | Properties | Value |
|-------|------------|-------|
| `is:auto` | isolation | `auto` |
| `is:i` | isolation | `isolate` |

### Pseudo Classes

Prefix a class with a state to apply it only while that state matches.

| Class | Properties | Value |
|-------|------------|-------|
| `is:auto` | isolation | `auto` |
| `is:i` | isolation | `isolate` |