---
source: crates/biome_formatter_test/src/snapshot_builder.rs
info: css/yaml/dirty.css
---

# Input

```css
---
hello:     world
a:       
            - 123
            - 666
---

.class {



}

```


# Prettier differences

```diff
--- Prettier
+++ Biome
@@ -1,8 +1,9 @@
 ---
-hello: world
-a:
-  - 123
-  - 666
+hello:     world
+a:       
+            -
+123
+            - 666
 ---
 
 .class {
```

# Output

```css
---
hello:     world
a:       
            -
123
            - 666
---

.class {
}
```

# Errors
```
dirty.css:1:1 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Expected a qualified rule, or an at rule but instead found '---'.
  
  > 1 │ ---
      │ ^^^
    2 │ hello:     world
    3 │ a:·······
  
  i Expected a qualified rule, or an at rule here.
  
  > 1 │ ---
      │ ^^^
    2 │ hello:     world
    3 │ a:·······
  
dirty.css:3:1 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `,` but instead found `a`
  
    1 │ ---
    2 │ hello:     world
  > 3 │ a:·······
      │ ^
    4 │             - 123
    5 │             - 666
  
  i Remove a
  
dirty.css:4:13 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Unexpected value or character.
  
    2 │ hello:     world
    3 │ a:·······
  > 4 │             - 123
      │             ^
    5 │             - 666
    6 │ ---
  
  i Expected one of:
  
  - hover
  - focus
  - active
  - first-child
  - last-child
  - nth-child
  - nth-last-child
  - first-of-type
  - last-of-type
  - nth-of-type
  - nth-last-of-type
  - only-child
  - only-of-type
  - checked
  - disabled
  - enabled
  - required
  - optional
  - valid
  - invalid
  - in-range
  - out-of-range
  - read-only
  - read-write
  - placeholder-shown
  - default
  - checked
  - indeterminate
  - blank
  - empty
  - root
  - target
  - lang
  - not
  - is
  - where
  - fullscreen
  - link
  - visited
  - any-link
  - local-link
  - scope
  - current
  - past
  - future
  
dirty.css:4:15 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `,` but instead found `123`
  
    2 │ hello:     world
    3 │ a:·······
  > 4 │             - 123
      │               ^^^
    5 │             - 666
    6 │ ---
  
  i Remove 123
  

```