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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:52 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:52 -0500
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+---
+title: Element.className
+slug: Web/API/Element/className
+tags:
+ - API
+ - DOM
+ - Gecko
+ - Property
+ - Reference
+translation_of: Web/API/Element/className
+---
+<div>{{APIRef("DOM")}}</div>
+
+<h2 id="Sumário">Sumário</h2>
+
+<p><strong>className</strong> retorna e define o valor do atributo <code>class</code> do elemento especificado.</p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="syntaxbox"><var>var cName</var> = <var>elementNodeReference</var>.className;
+<var>elementNodeReference</var>.className = <var>cName</var>;</pre>
+
+<ul>
+ <li><var>cName</var> sendo uma variável de texto (string) que represente uma única classe, ou múltiplas classes (separadas por um espaço) do elemento selecionado.</li>
+</ul>
+
+<h2 id="Exemplo">Exemplo</h2>
+
+<pre class="brush: js">var element = document.getElementById("div1");
+
+if (element.className === "fixed") {
+ // verifica a partir de uma classe específica do elemento
+ goNextElement();
+}</pre>
+
+<h2 id="Notes" name="Notes">Notas</h2>
+
+<p><code>O nome className</code> é utilizado para esta propriedade ao invés de <code>class</code> por conta de conflitos com a palavra-chave "class" em variáveis linguagens que são utilizadas para manipulação do <a href="/en-US/docs/Web/API/Document_Object_Model">DOM</a>.</p>
+
+<h2 id="Especificações">Especificações</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName("DOM WHATWG", "#dom-element-classname", "element.className")}}</td>
+ <td>{{Spec2("DOM WHATWG")}}</td>
+ <td> </td>
+ </tr>
+ <tr>
+ <td>{{SpecName("DOM4", "#dom-element-classname", "element.className")}}</td>
+ <td>{{Spec2("DOM4")}}</td>
+ <td> </td>
+ </tr>
+ <tr>
+ <td>{{SpecName("DOM2 HTML", "html.html#ID-95362176", "element.className")}}</td>
+ <td>{{Spec2("DOM2 HTML")}}</td>
+ <td>Definição inicial</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_de_Browser">Compatibilidade de Browser</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>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="Veja_também">Veja também</h2>
+
+<ul>
+ <li>{{domxref("element.classList")}}</li>
+</ul>