---
title: CSS Conditional Rules
slug: Web/CSS/CSS_Conditional_Rules
tags:
  - CSS
  - CSS Conditional Rules
  - Guide
  - NeedsTranslation
  - Overview
  - Reference
  - TopicStub
translation_of: Web/CSS/CSS_Conditional_Rules
---
<div>{{CSSRef}}</div>

<p><strong>CSS Conditional Rules</strong> is a CSS module that allows to define a set of rules that will only apply based on the capabilities of the processor or the document the style sheet is being applied to.</p>

<h2 id="Reference">Reference</h2>

<h3 id="At-rules">At-rules</h3>

<div class="index">
<ul>
 <li>{{cssxref("@document")}}</li>
 <li>{{cssxref("@media")}}</li>
 <li>{{cssxref("@supports")}}</li>
 <li>{{cssxref("@import")}}</li>
</ul>
</div>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('CSS3 Conditional')}}</td>
   <td>{{Spec2('CSS3 Conditional')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<h3 id="document_rule"><code>@document</code> rule</h3>

<div>


<p>{{Compat("css.at-rules.document")}}</p>

<h3 id="import_rule"><code>@import</code> rule</h3>

<div>
<p>{{Compat("css.at-rules.import")}}</p>
</div>

<h3 id="media_rule"><code>@media</code> rule</h3>

<div>
<p>{{Compat("css.at-rules.media")}}</p>

<h3 id="supports_rule"><code>@supports</code> rule</h3>

<div>
<p>{{Compat("css.at-rules.supports")}}</p>
</div>
</div>
</div>