# mask-border-mode

https://developer.mozilla.org/en-US/docs/Web/CSS/mask-border-mode

## alpha
```css
.selector {
  composes: alpha from 'hydrogencss/mask-border-mode.css'
}
```

or:
```css
.selector {
  composes: alpha from 'hydrogencss/mask-border-mode/alpha.css'
}
```

## luminance
```css
.selector {
  composes: luminance from 'hydrogencss/mask-border-mode.css'
}
```

or:
```css
.selector {
  composes: luminance from 'hydrogencss/mask-border-mode/luminance.css'
}
```