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noEmptyBlock

src/content/docs/linter/rules/no-empty-block.mdx

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import { Tabs, TabItem } from '@astrojs/starlight/components';

<Tabs> <TabItem label="CSS" icon="seti:css"> ## Summary - Rule available since: `v1.8.0` - Diagnostic Category: [`lint/suspicious/noEmptyBlock`](/reference/diagnostics#diagnostic-category) - This rule is **recommended**, meaning it is enabled by default. - This rule doesn't have a fix. - The default severity of this rule is [**warning**](/reference/diagnostics#warning). - Sources: - Same as [`block-no-empty`](https://github.com/stylelint/stylelint/blob/main/lib/rules/block-no-empty/README.md)

How to configure

json
{
	"linter": {
		"rules": {
			"suspicious": {
				"noEmptyBlock": "error"
			}
		}
	}
}

Description

Disallow CSS empty blocks.

By default, it will allow empty blocks with comments inside.

Examples

Invalid

css
p {}
<pre class="language-text"><code class="language-text">code-block.css:1:3 <a href="https://biomejs.dev/linter/rules/no-empty-block">lint/suspicious/noEmptyBlock</a> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ <strong><span style="color: Orange;">⚠</span></strong> <span style="color: Orange;">An empty block isn't allowed.</span> <strong><span style="color: Tomato;">&gt;</span></strong> <strong>1 │ </strong>p &#123;&#125; <strong> │ </strong> <strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong> <strong>2 │ </strong> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">Consider removing the empty block or adding styles inside it.</span> </code></pre>
css
.b {}
<pre class="language-text"><code class="language-text">code-block.css:1:4 <a href="https://biomejs.dev/linter/rules/no-empty-block">lint/suspicious/noEmptyBlock</a> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ <strong><span style="color: Orange;">⚠</span></strong> <span style="color: Orange;">An empty block isn't allowed.</span> <strong><span style="color: Tomato;">&gt;</span></strong> <strong>1 │ </strong>.b &#123;&#125; <strong> │ </strong> <strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong> <strong>2 │ </strong> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">Consider removing the empty block or adding styles inside it.</span> </code></pre>
css
@media print { a {} }
<pre class="language-text"><code class="language-text">code-block.css:1:18 <a href="https://biomejs.dev/linter/rules/no-empty-block">lint/suspicious/noEmptyBlock</a> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ <strong><span style="color: Orange;">⚠</span></strong> <span style="color: Orange;">An empty block isn't allowed.</span> <strong><span style="color: Tomato;">&gt;</span></strong> <strong>1 │ </strong>@media print &#123; a &#123;&#125; &#125; <strong> │ </strong> <strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong> <strong>2 │ </strong> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">Consider removing the empty block or adding styles inside it.</span> </code></pre>

Valid

css
p {
  color: red;
}
css
p { /* foo */ }
css
@media print { a { color: pink; } }
</TabItem> </Tabs>