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Contents
# unit-no-unknown
Disallow unknown units.
<!-- prettier-ignore -->
```css
a { width: 100pixels; }
/** ↑
* These units */
```
This rule considers units defined in the CSS Specifications, up to and including Editor's Drafts, to be known.
## Options
### `true`
The following patterns are considered violations:
<!-- prettier-ignore -->
```css
a {
width: 10pixels;
}
```
<!-- prettier-ignore -->
```css
a {
width: calc(10px + 10pixels);
}
```
The following patterns are _not_ considered violations:
<!-- prettier-ignore -->
```css
a {
width: 10px;
}
```
<!-- prettier-ignore -->
```css
a {
width: 10Px;
}
```
<!-- prettier-ignore -->
```css
a {
width: 10pX;
}
```
<!-- prettier-ignore -->
```css
a {
width: calc(10px + 10px);
}
```
## Optional secondary options
### `ignoreUnits: ["/regex/", /regex/, "string"]`
Given:
```
["/^my-/", "custom"]
```
The following patterns are _not_ considered violations:
<!-- prettier-ignore -->
```css
width: 10custom;
a {
}
```
<!-- prettier-ignore -->
```css
a {
width: 10my-unit;
}
```
<!-- prettier-ignore -->
```css
a {
width: 10my-other-unit;
}
```
### `ignoreFunctions: ["/regex/", /regex/, "string"]`
Given:
```
["image-set", "/^my-/", "/^YOUR-/i"]
```
The following patterns are _not_ considered violations:
<!-- prettier-ignore -->
```css
a {
background-image: image-set(
'/images/some-image-1x.jpg' 1x,
'/images/some-image-2x.jpg' 2x,
'/images/some-image-3x.jpg' 3x
);
}
```
<!-- prettier-ignore -->
```css
a {
background-image: my-image-set(
'/images/some-image-1x.jpg' 1x,
'/images/some-image-2x.jpg' 2x,
'/images/some-image-3x.jpg' 3x
);
}
```
<!-- prettier-ignore -->
```css
a {
background-image: YoUr-image-set(
'/images/some-image-1x.jpg' 1x,
'/images/some-image-2x.jpg' 2x,
'/images/some-image-3x.jpg' 3x
);
}
```
Version data entries
24 entries across 24 versions & 1 rubygems