1 files changed, 104 insertions, 0 deletions
diff --git a/files/pt-pt/web/css/pseudo-elements/index.html b/files/pt-pt/web/css/pseudo-elements/index.html
new file mode 100644
index 0000000000..780d17c378
--- /dev/null
+++ b/files/pt-pt/web/css/pseudo-elements/index.html
@@ -0,0 +1,104 @@
+---
+title: Pseudoelementos
+slug: Web/CSS/Pseudoelementos
+tags:
+  - CSS
+  - Pseudoelemento
+  - Referencia
+  - Resumo
+  - Seletores
+  - Sinopse
+translation_of: Web/CSS/Pseudo-elements
+---
+<div>{{CSSRef}}</div>
+
+<p>Um <strong>pseudoelemento</strong> de CSS é uma palavra-chave adicionada ao seletor que lhe permite estilizar uma parte específica do(s) elemento(s) selecionado(s). Por exemplo, {{CSSxRef("::first-line")}} pode ser utilizado para alterar o tipo de letra da primeira linha de um parágrafo.</p>
+
+<pre class="brush: css no-line-numbers">/* The first line of every &lt;p&gt; element. */
+p::first-line {
+  color: blue;
+  text-transform: uppercase;
+}</pre>
+
+<div class="note">
+<p><strong>Nota:</strong> In contrast to pseudo-elements, {{CSSxRef("pseudo-classes")}} can be used to style an element based on its <em>state</em>.</p>
+</div>
+
+<h2 id="Sintaxe">Sintaxe</h2>
+
+<pre class="syntaxbox">selector::pseudo-element {
+  property: value;
+}</pre>
+
+<p>You can use only one pseudo-element in a selector. It must appear after the simple selectors in the statement.</p>
+
+<div class="note">
+<p><strong>Note:</strong> As a rule, double colons (<code>::</code>) should be used instead of a single colon (<code>:</code>). This distinguishes pseudo-classes from pseudo-elements. However, since this distinction was not present in older versions of the W3C spec, most browsers support both syntaxes for the original pseudo-elements.</p>
+</div>
+
+<h2 id="Índice_de_pseudoelementos_padrões">Índice de pseudoelementos padrões</h2>
+
+<div class="index" id="index">
+<ul>
+ <li>{{CSSxRef("::after", "::after (:after)")}}</li>
+ <li>{{CSSxRef("::backdrop")}} {{Experimental_Inline}}</li>
+ <li>{{CSSxRef("::before", "::before (:before)")}}</li>
+ <li>{{CSSxRef("::cue", "::cue (:cue)")}}</li>
+ <li>{{CSSxRef("::first-letter", "::first-letter (:first-letter)")}}</li>
+ <li>{{CSSxRef("::first-line", "::first-line (:first-line)")}}</li>
+ <li>{{CSSxRef("::grammar-error")}} {{Experimental_Inline}}</li>
+ <li>{{CSSxRef("::marker")}} {{Experimental_Inline}}</li>
+ <li>{{CSSxRef("::placeholder")}} {{Experimental_Inline}}</li>
+ <li>{{CSSxRef("::selection")}}</li>
+ <li>{{CSSxRef("::slotted", "::slotted()")}}</li>
+ <li>{{CSSxRef("::spelling-error")}} {{Experimental_Inline}}</li>
+</ul>
+</div>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th>Navegador</th>
+   <th>Versão Mais Baixa</th>
+   <th>Suporta</th>
+  </tr>
+  <tr>
+   <td rowspan="2">Internet Explorer</td>
+   <td>8.0</td>
+   <td><code>:pseudo-element</code></td>
+  </tr>
+  <tr>
+   <td>9.0</td>
+   <td><code>:pseudo-element ::pseudo-element</code></td>
+  </tr>
+  <tr>
+   <td rowspan="2">Firefox (Gecko)</td>
+   <td>1.0 (1.0)</td>
+   <td><code>:pseudo-element</code></td>
+  </tr>
+  <tr>
+   <td>1.0 (1.5)</td>
+   <td><code>:pseudo-element ::pseudo-element</code></td>
+  </tr>
+  <tr>
+   <td rowspan="2">Opera</td>
+   <td>4.0</td>
+   <td><code>:pseudo-element</code></td>
+  </tr>
+  <tr>
+   <td>7.0</td>
+   <td><code>:pseudo-element ::pseudo-element</code></td>
+  </tr>
+  <tr>
+   <td>Safari (WebKit)</td>
+   <td>1.0 (85)</td>
+   <td><code>:pseudo-element ::pseudo-element</code></td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Consultar_também">Consultar também:</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web/CSS/Pseudo-classes" style="white-space: nowrap;">Pseudoclasses</a></li>
+</ul>