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

# Input

```css
---
hello: world
---

/* prettier-ignore */
.foo {}

```


# Prettier differences

```diff
--- Prettier
+++ Biome
@@ -1,6 +1,8 @@
 ---
 hello: world
----
+--
+-
 
 /* prettier-ignore */
-.foo {}
+.foo {
+}
```

# Output

```css
---
hello: world
--
-

/* prettier-ignore */
.foo {
}
```

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

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

  × expected `,` but instead found `-`
  
    1 │ ---
    2 │ hello: world
  > 3 │ ---
      │ ^
    4 │ 
    5 │ /* biome-ignore format: prettier ignore */
  
  i Remove -
  
ignore.css:3:3 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × expected `,` but instead found `-`
  
    1 │ ---
    2 │ hello: world
  > 3 │ ---
      │   ^
    4 │ 
    5 │ /* biome-ignore format: prettier ignore */
  
  i Remove -
  

```