# named-grid-areas-no-invalid

Disallow invalid named grid areas.

<!-- prettier-ignore -->
```css
a { grid-template-areas: 
      "a a a"
      "b b b"; }
/**   ↑
 *  This named grid area */
```

## Options

### `true`

The following patterns are considered violations:

All strings must define the same number of cell tokens.

<!-- prettier-ignore -->
```css
a { grid-template-areas: "a a a"
                         "b b b b"; }
```

All strings must define at least one cell token.

<!-- prettier-ignore -->
```css
a { grid-template-areas: "" }
```

All named grid areas that spans multiple grid cells must form a single filled-in rectangle.

<!-- prettier-ignore -->
```css
a { grid-template-areas: "a a a"
                         "b b a"; }
```

The following patterns are _not_ considered violations:

<!-- prettier-ignore -->
```css
a { grid-template-areas: "a a a"
                         "b b b"; }
```

<!-- prettier-ignore -->
```css
a { grid-template-areas: "a a a" "b b b"; }
```

<!-- prettier-ignore -->
```css
a { grid-template-areas: none; }
```