# Outline Style

Set the style for an element's outline.

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

Chrome 1 · Edge 15 · Firefox 1.5 · Safari 1.2

| Class | Properties | Value |
|-------|------------|-------|
| `os:none` | outline-style | `none` |
| `os:d` | outline-style | `dashed` |
| `os:s` | outline-style | `solid` |

### Media Queries

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

| Class | Properties | Value |
|-------|------------|-------|
| `os:none` | outline-style | `none` |
| `os:d` | outline-style | `dashed` |
| `os:s` | outline-style | `solid` |

### Pseudo Classes

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

| Class | Properties | Value |
|-------|------------|-------|
| `os:none` | outline-style | `none` |
| `os:d` | outline-style | `dashed` |
| `os:s` | outline-style | `solid` |