| # declaration-block-semicolon-space-before |
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| Require a single space or disallow whitespace before the semicolons of declaration blocks. |
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| ```css |
| a { color: pink; } |
| /** ↑ |
| * The space before this semicolon */ |
| ``` |
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| This rule ignores semicolons that are preceded by Less mixins. |
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| The `--fix` option on the [command line](../../../docs/user-guide/cli.md#autofixing-errors) can automatically fix all of the problems reported by this rule. |
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| ## Options |
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| `string`: `"always"|"never"|"always-single-line"|"never-single-line"` |
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| ### `"always"` |
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| There *must always* be a single space before the semicolons. |
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| The following patterns are considered violations: |
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| ```css |
| a { color: pink; } |
| ``` |
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| ```css |
| a { color: pink; top: 0; } |
| ``` |
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| The following patterns are *not* considered violations: |
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| ```css |
| a { color: pink ; } |
| ``` |
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| ```css |
| a { color: pink ; top: 0 ; } |
| ``` |
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| ### `"never"` |
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| There *must never* be whitespace before the semicolons. |
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| The following patterns are considered violations: |
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| ```css |
| a { color: pink ; } |
| ``` |
| |
| ```css |
| a { color: pink ; top: 0 ; } |
| ``` |
| |
| The following patterns are *not* considered violations: |
| |
| ```css |
| a { color: pink; } |
| ``` |
| |
| ```css |
| a { color: pink; top: 0; } |
| ``` |
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| ### `"always-single-line"` |
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| There *must always* be a single space before the semicolons in single-line declaration blocks. |
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| The following patterns are considered violations: |
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| ```css |
| a { color: pink; } |
| ``` |
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| The following patterns are *not* considered violations: |
| |
| ```css |
| a { color: pink ; } |
| ``` |
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| ```css |
| a { color: pink; top: 0; } |
| ``` |
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| ```css |
| a { color: pink ; top: 0 ; } |
| ``` |
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| ### `"never-single-line"` |
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| There *must never* be whitespace before the semicolons in single-line declaration blocks. |
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| The following patterns are considered violations: |
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| ```css |
| a { color: pink ; } |
| ``` |
| |
| The following patterns are *not* considered violations: |
| |
| ```css |
| a { color: pink; } |
| ``` |
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| ```css |
| a { color: pink; top: 0; } |
| ``` |
| |
| ```css |
| a { color: pink ; top: 0 ; } |
| ``` |