---
title: ':focus'
slug: 'Web/CSS/:focus'
tags:
  - CSS
  - Layout
  - Pseudo-class
  - Reference
  - Web
translation_of: 'Web/CSS/:focus'
---
<div>{{CSSRef}}</div>

<p>La <a href="/en-US/docs/Web/CSS/Pseudo-classes" title="Pseudo-classes">pseudo-class</a> <a href="/en-US/docs/Web/CSS">CSS</a> <strong><code>:focus</code></strong> representa un element (com ara una entrada de formulari) que ha rebut el focus. Generalment, s'activa quan l'usuari fa clic o toca un element o el selecciona amb la tecla "tab" del teclat.</p>

<pre class="brush: css no-line-numbers">/* Selecciona qualsevol &lt;input&gt; quan s'enfoca */
input:focus {
  color: red;
}</pre>

<div class="note">
<p><strong>Nota:</strong> Aquesta pseudo-class s'aplica només a l'element enfocat. Utilitzeu {{cssxref(":focus-within")}} si voleu seleccionar un element que contingui un element enfocat.</p>
</div>

<h2 id="Sintaxi">Sintaxi</h2>

{{csssyntax}}

<h2 id="Exemple">Exemple</h2>

<h3 id="HTML">HTML</h3>

<pre class="brush: html">&lt;input class="red-input" value="I'll be red when focused."&gt;&lt;br&gt;
&lt;input class="blue-input" value="I'll be blue when focused."&gt;</pre>

<h3 id="CSS">CSS</h3>

<pre class="brush: css">.red-input:focus {
  background: yellow;
  color: red;
}

.blue-input:focus {
  background: yellow;
  color: blue;
}</pre>

<h3 id="Resultat">Resultat</h3>

<p>{{EmbedLiveSample('Example')}}</p>

<h2 id="Especificacions">Especificacions</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Especificació</th>
   <th scope="col">Estat</th>
   <th scope="col">Comentari</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('HTML WHATWG', 'scripting.html#selector-focus', ':focus')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td><span class="short_text" id="result_box" lang="ca"><span>Defineix</span> <span>la semàntica</span> <span>específica</span> <span>d'HTML.</span></span></td>
  </tr>
  <tr>
   <td>{{SpecName('CSS4 Selectors', '#focus-pseudo', ':focus')}}</td>
   <td>{{Spec2('CSS4 Selectors')}}</td>
   <td>Sense canvis</td>
  </tr>
  <tr>
   <td>{{SpecName('CSS3 Selectors', '#the-user-action-pseudo-classes-hover-act', ':focus')}}</td>
   <td>{{Spec2('CSS3 Selectors')}}</td>
   <td>Sense canvis</td>
  </tr>
  <tr>
   <td>{{SpecName('CSS2.1', 'selector.html#dynamic-pseudo-classes', ':focus')}}</td>
   <td>{{Spec2('CSS2.1')}}</td>
   <td>Definició inicial</td>
  </tr>
 </tbody>
</table>

<h2 id="Navegadors_compatibles">Navegadors compatibles</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Descripció</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Suport bàsic</td>
   <td>1.0</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop("1")}}</td>
   <td>8.0</td>
   <td>7.0</td>
   <td>1.0</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Descripció</th>
   <th>Android</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Suport bàsic</td>
   <td>1.0</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("1")}}</td>
   <td>8.0</td>
   <td>6.0</td>
   <td>1.0</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="Vegeu_també">Vegeu també</h2>

<ul>
 <li>{{cssxref(":focus-within")}}</li>
</ul>