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+---
+title: Seletores de ID
+slug: Web/CSS/ID_selectors
+tags:
+  - Beginner
+  - CSS
+  - CSS Reference
+  - Iniciante
+  - Referencia
+  - Referencia CSS
+  - Selectors
+  - Seletores
+translation_of: Web/CSS/ID_selectors
+---
+<div>{{CSSRef("Selectors")}}</div>
+
+<p>Em um documento HTML, os seletores de ID do CSS selecionam um elemento baseado no conteúdo de seu atributo {{htmlattrxref("ID")}},  o qual deve ser exatamente igual ao valor dado ao seletor.</p>
+
+<h2 id="Sintaxe">Sintaxe</h2>
+
+<pre class="syntaxbox">#valor_id { <em>propriedades de estilo</em> }</pre>
+
+<p>Note que isso é equivalente aos seguintes {{Cssxref("Attribute_selectors", "seletores de atributo")}}:</p>
+
+<pre class="syntaxbox">[id=valor_id] { <em>propriedades de estilo</em> }</pre>
+
+<h2 id="Exemplo">Exemplo</h2>
+
+<pre class="brush: css">span#identificado {
+  background-color: DodgerBlue;
+}
+</pre>
+
+<pre class="brush: html">&lt;span id="identificado"&gt;Aqui um span com um pouco de texto.&lt;/span&gt;
+&lt;span&gt;Aqui outro.&lt;/span&gt;
+</pre>
+
+<p>{{EmbedLiveSample("Exemplo", 200, 50)}}</p>
+
+<h2 id="Especificações">Especificações</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">Especificação</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comentário</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName("CSS4 Selectors", "#id-selectors", "ID selectors")}}</td>
+   <td>{{Spec2("CSS4 Selectors")}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName("CSS3 Selectors", "#id-selectors", "ID selectors")}}</td>
+   <td>{{Spec2("CSS3 Selectors")}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName("CSS2.1", "selector.html#id-selectors", "ID selectors")}}</td>
+   <td>{{Spec2("CSS2.1")}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName("CSS1", "#id-as-selector", "ID selectors")}}</td>
+   <td>{{Spec2("CSS1")}}</td>
+   <td>Definição inicial</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_nos_Navegadores">Compatibilidade nos Navegadores</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Recurso</th>
+   <th>Chrome</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>Suporte básico</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Recurso</th>
+   <th>Android</th>
+   <th>Chrome for Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Suporte básico</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>