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

# Input

```css
---
title: Title
description: Description
---

a {
    color: red;
}

```


# Prettier differences

```diff
--- Prettier
+++ Biome
@@ -1,7 +1,8 @@
 ---
 title: Title
 description: Description
----
+--
+-
 
 a {
   color: red;
```

# Output

```css
---
title: Title
description: Description
--
-

a {
  color: red;
}
```

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

  × Expected a qualified rule, or an at rule but instead found '---'.
  
  > 1 │ ---
      │ ^^^
    2 │ title: Title
    3 │ description: Description
  
  i Expected a qualified rule, or an at rule here.
  
  > 1 │ ---
      │ ^^^
    2 │ title: Title
    3 │ description: Description
  
yaml.css:3:1 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `,` but instead found `description`
  
    1 │ ---
    2 │ title: Title
  > 3 │ description: Description
      │ ^^^^^^^^^^^
    4 │ ---
    5 │ 
  
  i Remove description
  
yaml.css:4:1 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `,` but instead found `-`
  
    2 │ title: Title
    3 │ description: Description
  > 4 │ ---
      │ ^
    5 │ 
    6 │ a {
  
  i Remove -
  
yaml.css:4:3 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `,` but instead found `-`
  
    2 │ title: Title
    3 │ description: Description
  > 4 │ ---
      │   ^
    5 │ 
    6 │ a {
  
  i Remove -
  

```