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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: a
+slug: Web/SVG/Element/a
+tags:
+ - Elemento
+ - SVG
+translation_of: Web/SVG/Element/a
+---
+<div>{{SVGRef}}</div>
+
+<p>O elemento <strong>&lt;a&gt;</strong> do SVG cria um hiperlink para outras páginas da web, arquivos, locais na mesma página, endereços de email ou qualquer outra URL. É muito semelhante ao elemento {{htmlelement ("a")}} do HTML.</p>
+
+<p>O elemento <code>&lt;a&gt;</code> do SVG é um contêiner, o que significa que você pode criar um link em torno do texto (como em HTML), mas também em torno de qualquer elemento.</p>
+
+<div id="Exemple">
+<div class="hidden">
+<pre class="brush: css">@namespace svg url(http://www.w3.org/2000/svg);
+html,body,svg { height:100% }</pre>
+</div>
+
+<pre class="brush: html">&lt;svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"&gt;
+ &lt;!-- A link around a shape --&gt;
+ &lt;a href="/docs/Web/SVG/Element/circle"&gt;
+ &lt;circle cx="50" cy="40" r="35"/&gt;
+ &lt;/a&gt;
+
+ &lt;!-- A link around a text --&gt;
+ &lt;a href="/docs/Web/SVG/Element/text"&gt;
+ &lt;text x="50" y="90" text-anchor="middle"&gt;
+ &amp;lt;circle&amp;gt;
+ &lt;/text&gt;
+ &lt;/a&gt;
+&lt;/svg&gt;</pre>
+
+<pre class="brush: css">/* As SVG does not provide a default visual style for links,
+ it's considered best practice to add some */
+
+@namespace svg url(http://www.w3.org/2000/svg);
+/* Necessary to select only SVG &lt;a&gt; elements, and not also HTML’s.
+ See warning below */
+
+svg|a:link, svg|a:visited {
+ cursor: pointer;
+}
+
+svg|a text,
+text svg|a {
+ fill: blue; /* Even for text, SVG uses fill over color */
+ text-decoration: underline;
+}
+
+svg|a:hover, svg|a:active {
+ outline: dotted 1px blue;
+}</pre>
+
+<p>{{EmbedLiveSample('Exemple', 100, 100)}}</p>
+</div>
+
+<div class="warning">
+<p>Como esse elemento compartilha seu nome de tag com o <a href="/pt-BR/docs/Web/HTML/Element/a">elemento <code>&lt;a&gt;</code> do HTML</a>, selecionar <code>a</code> com CSS ou <code><a href="/pt-BR/docs/Web/API/Document/querySelector">querySelector</a></code>, pode ser aplicar ao tipo errado de elemento. Experimente usar <a href="/pt-BR/docs/Web/CSS/@namespace">a regra @namespace</a> para distinguir os dois.</p>
+</div>
+
+<h2 id="Attributes">Attributes</h2>
+
+<dl>
+ <dt>{{htmlattrxref("download", "a")}} {{experimental_inline}}</dt>
+ <dd>Instructs browsers to download a {{Glossary("URL")}} instead of navigating to it, so the user will be prompted to save it as a local file.<br>
+ <small><em>Value type</em>: <strong>&lt;string&gt;</strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>no</strong></small></dd>
+ <dt>{{SVGAttr("href")}}</dt>
+ <dd>The {{Glossary("URL")}} or URL fragment the hyperlink points to.<br>
+ <small><em>Value type</em>: <strong><a href="/docs/Web/SVG/Content_type#URL">&lt;URL&gt;</a></strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>yes</strong></small></dd>
+ <dt>{{htmlattrxref("hreflang", "a")}}</dt>
+ <dd>The human language of the URL or URL fragment that the hyperlink points to.<br>
+ <small><em>Value type</em>: <strong>&lt;string&gt;</strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>yes</strong></small></dd>
+ <dt>{{htmlattrxref("ping", "a")}} {{experimental_inline}}</dt>
+ <dd>A space-separated list of URLs to which, when the hyperlink is followed, <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" title="The HTTP POST method sends data to the server. The type of the body of the request is indicated by the Content-Type header."><code>POST</code></a> requests with the body <code>PING</code> will be sent by the browser (in the background). Typically used for tracking. For a more widely-supported feature addressing the same use cases, see <a href="/en-US/docs/Web/API/Navigator/sendBeacon">Navigator.sendBeacon()</a>.<br>
+ <small><em>Value type</em>: <strong><a href="/docs/Web/SVG/Content_type#List-of-Ts">&lt;list-of-URLs&gt;</a></strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>no</strong></small></dd>
+ <dt>{{htmlattrxref("referrerpolicy", "a")}} {{experimental_inline}}</dt>
+ <dd>Which <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referer">referrer</a> to send when fetching the {{Glossary("URL")}}.<br>
+ <small><em>Value type</em>: <code>no-referrer</code>|<code>no-referrer-when-downgrade</code>|<code>same-origin</code>|<code>origin</code>|<code>strict-origin</code>|<code>origin-when-cross-origin</code>|<code>strict-origin-when-cross-origin</code>|<code>unsafe-url</code> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>no</strong></small></dd>
+ <dt>{{htmlattrxref("rel", "a")}} {{experimental_inline}}</dt>
+ <dd>The relationship of the target object to the link object.<br>
+ <small><em>Value type</em>: <strong><a href="/docs/Web/HTML/Link_types">&lt;list-of-Link-Types&gt;</a></strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>yes</strong></small></dd>
+ <dt>{{SVGAttr("target")}}</dt>
+ <dd>Where to display the linked {{Glossary("URL")}}.<br>
+ <small><em>Value type</em>: <code>_self</code>|<code>_parent</code>|<code>_top</code>|<code>_blank</code>|<strong>&lt;name&gt;</strong> ; <em>Default value</em>: <code>_self</code>; <em>Animatable</em>: <strong>yes</strong></small></dd>
+ <dt>{{htmlattrxref("type", "a")}}</dt>
+ <dd>A {{Glossary("MIME type")}} for the linked URL.<br>
+ <small><em>Value type</em>: <strong>&lt;string&gt;</strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>yes</strong></small></dd>
+ <dt>{{SVGAttr("xlink:href")}} {{deprecated_inline("SVG2")}}</dt>
+ <dd>The URL or URL fragment that the hyperlink points to. May be required for backwards compatibility for older browsers.<br>
+ <small><em>Value type</em>: <strong><a href="/docs/Web/SVG/Content_type#URL">&lt;URL&gt;</a></strong> ; <em>Default value</em>: <em>none</em>; <em>Animatable</em>: <strong>yes</strong></small></dd>
+</dl>
+
+<h3 id="Global_attributes">Global attributes</h3>
+
+<dl>
+ <dt><a href="/docs/Web/SVG/Attribute/Core">Core Attributes</a></dt>
+ <dd><small>Most notably: {{SVGAttr('id')}}, {{SVGAttr('lang')}}, {{SVGAttr('tabindex')}}</small></dd>
+ <dt><a href="/docs/Web/SVG/Attribute/Styling">Styling Attributes</a></dt>
+ <dd><small>{{SVGAttr('class')}}, {{SVGAttr('style')}}</small></dd>
+ <dt><a href="/docs/Web/SVG/Attribute/Conditional_Processing">Conditional Processing Attributes</a></dt>
+ <dd><small>Most notably: {{SVGAttr('requiredExtensions')}}, {{SVGAttr('systemLanguage')}}</small></dd>
+ <dt>Event Attributes</dt>
+ <dd><small><a href="/docs/Web/SVG/Attribute/Events#Global_Event_Attributes">Global event attributes</a>, <a href="/docs/Web/SVG/Attribute/Events#Document_Element_Event_Attributes">Document element event attributes</a>, <a href="/docs/Web/SVG/Attribute/Events#Graphical_Event_Attributes">Graphical event attributes</a></small></dd>
+ <dt><a href="/docs/Web/SVG/Attribute/Presentation">Presentation Attributes</a></dt>
+ <dd><small>Most notably: {{SVGAttr('clip-path')}}, {{SVGAttr('clip-rule')}}, {{SVGAttr('color')}}, {{SVGAttr('color-interpolation')}}, {{SVGAttr('color-rendering')}}, {{SVGAttr('cursor')}}, {{SVGAttr('display')}}, {{SVGAttr('fill')}}, {{SVGAttr('fill-opacity')}}, {{SVGAttr('fill-rule')}}, {{SVGAttr('filter')}}, {{SVGAttr('mask')}}, {{SVGAttr('opacity')}}, {{SVGAttr('pointer-events')}}, {{SVGAttr('shape-rendering')}}, {{SVGAttr('stroke')}}, {{SVGAttr('stroke-dasharray')}}, {{SVGAttr('stroke-dashoffset')}}, {{SVGAttr('stroke-linecap')}}, {{SVGAttr('stroke-linejoin')}}, {{SVGAttr('stroke-miterlimit')}}, {{SVGAttr('stroke-opacity')}}, {{SVGAttr('stroke-width')}}, {{SVGAttr("transform")}}, {{SVGAttr('vector-effect')}}, {{SVGAttr('visibility')}}</small></dd>
+ <dt>XLink Attributes</dt>
+ <dd><small>Most notably: {{SVGAttr("xlink:title")}}</small></dd>
+ <dt>ARIA Attributes</dt>
+ <dd><small><code>aria-activedescendant</code>, <code>aria-atomic</code>, <code>aria-autocomplete</code>, <code>aria-busy</code>, <code>aria-checked</code>, <code>aria-colcount</code>, <code>aria-colindex</code>, <code>aria-colspan</code>, <code>aria-controls</code>, <code>aria-current</code>, <code>aria-describedby</code>, <code>aria-details</code>, <code>aria-disabled</code>, <code>aria-dropeffect</code>, <code>aria-errormessage</code>, <code>aria-expanded</code>, <code>aria-flowto</code>, <code>aria-grabbed</code>, <code>aria-haspopup</code>, <code>aria-hidden</code>, <code>aria-invalid</code>, <code>aria-keyshortcuts</code>, <code>aria-label</code>, <code>aria-labelledby</code>, <code>aria-level</code>, <code>aria-live</code>, <code>aria-modal</code>, <code>aria-multiline</code>, <code>aria-multiselectable</code>, <code>aria-orientation</code>, <code>aria-owns</code>, <code>aria-placeholder</code>, <code>aria-posinset</code>, <code>aria-pressed</code>, <code>aria-readonly</code>, <code>aria-relevant</code>, <code>aria-required</code>, <code>aria-roledescription</code>, <code>aria-rowcount</code>, <code>aria-rowindex</code>, <code>aria-rowspan</code>, <code>aria-selected</code>, <code>aria-setsize</code>, <code>aria-sort</code>, <code>aria-valuemax</code>, <code>aria-valuemin</code>, <code>aria-valuenow</code>, <code>aria-valuetext</code>, <code>role</code></small></dd>
+</dl>
+
+<h2 id="Usage_notes">Usage notes</h2>
+
+<p>{{svginfo}}</p>
+
+<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("SVG2", "linking.html#Links", "&lt;a&gt;")}}</td>
+ <td>{{Spec2("SVG2")}}</td>
+ <td>Replaced {{SVGAttr("xlink:href")}} attribute by {{SVGAttr("href")}}</td>
+ </tr>
+ <tr>
+ <td>{{SpecName("SVG1.1", "linking.html#Links", "&lt;a&gt;")}}</td>
+ <td>{{Spec2("SVG1.1")}}</td>
+ <td>Initial definition</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("svg.elements.a")}}</p>