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---
title: min-height
slug: Web/CSS/min-height
translation_of: Web/CSS/min-height
---
<p>{{ CSSRef() }}</p>
<h2 id="Summary" name="Summary">Sumário</h2>
<p>A propriedade <code>min-height</code> do CSS é usado para definir a altura mínima de um determinado elemento. Ele impede que o valor usado da propriedade {{ Cssxref("height") }} se torne menor que o valor especificado para min-height.<br>
O valor de {{ Cssxref("min-height") }} substitui os dois {{ Cssxref("max-height") }} e {{ Cssxref("height") }}.</p>
<p>{{cssinfo}}</p>
<h2 id="Syntax" name="Syntax"><span id="ouHighlight__0_5TO0_6">Sintaxe</span></h2>
<pre class="twopartsyntaxbox"><a href="/en-US/docs/CSS/Value_definition_syntax" title="CSS/Value_definition_syntax">sintaxe forma</a>: {{csssyntax("min-height")}}
</pre>
<pre>min-height: 3.5em
min-height: 10%
min-height: max-content
min-height: min-content
min-height: fit-content
min-height: fill-available
min-height: inherit
</pre>
<h3 id="Values" name="Values">Valores</h3>
<dl>
<dt><code><length></code></dt>
<dd>O valor fixo mínimo da altura. Veja {{cssxref("<length>")}} para possíveis unidades. Valores negativos fazem da declaração inválida.</dd>
<dt><code><percentage></code></dt>
<dd>O valor fixo mínimo da altura expressado como uma {{cssxref("<percentage>")}} do conteúdo da altura do bloco. Valores negativos fazem da declaração inválida.</dd>
<dt><code>max-content</code> {{ experimental_inline() }}</dt>
<dd>The intrinsic preferred height.</dd>
<dt><code>min-content</code> {{ experimental_inline() }}</dt>
<dd>The intrinsic minimum height.</dd>
<dt><code>fill-available</code>{{ experimental_inline() }}</dt>
<dd>The containing block height minus horizontal margin, border and padding. Some browsers implement an ancient name for this keyword, <code>available</code>.</dd>
<dt><code>fit-content</code> {{ experimental_inline() }}</dt>
<dd>According CSS3 Box, this is a synonym of <code>min-content.</code> CSS3 Sizing defines a more complex algorithm, but no browser implements it, even in an experimental way.</dd>
</dl>
<h2 id="Examples" name="Examples">Exemplos</h2>
<pre class="brush: css">table { min-height: 75%; }
form { min-height: 0; }
</pre>
<h2 id="Especificações">Especificações</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Especificação</th>
<th scope="col">Status</th>
<th scope="col"><span id="ouHighlight__0_6TO0_9">Comentário</span></th>
</tr>
<tr>
<td>{{ SpecName('CSS3 Sizing', '#width-height-keywords', 'min-height') }}</td>
<td>{{ Spec2('CSS3 Sizing') }}</td>
<td>Adds the <code>max-content</code>, <code>min-content</code>, <code>fit-content</code>, and <code>fill-available</code> keywords.<br>
<em>Both CSS3 Box and CSS3 Writing Modes drafts defined at some point these keywords. These drafts are superseded by this spec.</em></td>
</tr>
<tr>
<td>{{ SpecName('CSS3 Flexbox', '#min-auto', 'min-height') }}</td>
<td>{{ Spec2('CSS3 Flexbox') }}</td>
<td>An <a href="http://www.w3.org/TR/2012/CR-css3-flexbox-20120918/">earlier revision of the spec</a> added the <code>auto</code> keyword and used it as the initial value. The CSSWG subsequently resolved to revert this change, however. As of March 29, 2013, the latest <a href="http://dev.w3.org/csswg/css-flexbox/">Editor's Draft</a> doesn't modify the <code>min-width</code> property anymore (i.e. it no longer introduces the <code>auto</code> value).</td>
</tr>
<tr>
<td>{{ SpecName('CSS3 Transitions', '#animatable-css', 'min-height') }}</td>
<td>{{ Spec2('CSS3 Transitions') }}</td>
<td>Defines <code>min-height</code> as animatable.</td>
</tr>
<tr>
<td>{{ SpecName('CSS2.1', 'visudet.html#min-max-heights', 'min-height') }}</td>
<td>{{ Spec2('CSS2.1') }}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="Navegadores_compatíveis">Navegadores compatíveis</h2>
<p>{{ CompatibilityTable() }}</p>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari (WebKit)</th>
</tr>
<tr>
<td>Basic support</td>
<td>1.0</td>
<td>{{ CompatGeckoDesktop("1.9") }}</td>
<td>7.0</td>
<td>4.0</td>
<td>1.0<br>
2.0.2 (416) for positioned elements</td>
</tr>
<tr>
<td>applies to <code><table> </code>[1]</td>
<td>{{ CompatNo() }}</td>
<td>{{ CompatVersionUnknown() }}</td>
<td>{{ CompatNo() }}</td>
<td>{{ CompatVersionUnknown() }}</td>
<td>{{ CompatNo() }}</td>
</tr>
<tr>
<td><code>max-content</code>, <code>min-content</code>, <code>fit-content</code>, and <code>fill-</code><code>available</code> {{ experimental_inline() }}</td>
<td>{{ CompatNo() }}</td>
<td>{{ CompatNo() }}</td>
<td>{{ CompatNo() }}</td>
<td>{{ CompatNo() }}</td>
<td>{{ CompatNo() }}</td>
</tr>
<tr>
<td><code>auto</code>{{obsolete_inline(22)}}</td>
<td>21.0</td>
<td>{{ CompatGeckoDesktop("16.0") }}</td>
<td>{{ CompatNo() }}</td>
<td>12.10</td>
<td>{{ CompatNo() }}</td>
</tr>
<tr>
<td><code>auto</code> as initial value{{obsolete_inline(22)}}</td>
<td>21.0</td>
<td>{{ CompatGeckoDesktop("18.0") }}</td>
<td>{{ CompatNo() }}</td>
<td>12.10</td>
<td>{{ CompatNo() }}</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Phone</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
<td>{{ CompatUnknown() }}</td>
</tr>
</tbody>
</table>
</div>
<h3 id="Notas">Notas</h3>
<p>[1] CSS 2.1 explicitly leaves the behavior of <code>min-height </code>with {{ HTMLElement("table") }} undefined. Therefore any behavior is CSS2.1-compliant; newer CSS specifications may define this behavior, so Web developers shouldn't rely on a specific one now.</p>
<p>[2] Due to bug ({{bug("307866")}}) Firefox doesn't hande <code>min-height</code> on elements with <code>display: table-*</code>.</p>
<h2 id="See_also" name="See_also">Ver também</h2>
<ul>
<li>{{ Cssxref("width") }}, {{ Cssxref("height") }}, {{ Cssxref("max-height") }}</li>
<li>The <a href="/en-US/docs/CSS/box_model" title="en/CSS/box_model">box model</a>, {{ Cssxref("min-width") }}, {{ Cssxref("box-sizing") }}, {{ Cssxref("height") }}, {{ Cssxref("max-height") }}</li>
</ul>
|
