min-width

  • Revision slug: CSS/min-width
  • Revision title: min-width
  • Revision id: 372769
  • Created:
  • Creator: Dholbert
  • Is current revision? No
  • Comment Fix typo ("explicitely")

Revision Content

{{ CSSRef() }}

Summary

The min-width CSS property is used to set the minimum width of a given element. It prevents the used value of the {{ Cssxref("width") }} property from becoming smaller than the value specified for min-width.

The value of min-width overrides both {{ Cssxref("max-width") }} and {{ Cssxref("width") }}.

{{cssbox("min-width")}}

Syntax

Formal syntax: {{csssyntax("min-width")}}
min-width: 3.5em
min-width: 10%
min-width: max-content
min-width: min-content
min-width: fit-content
min-width: fill-available

min-width: inherit

Values

<length>
The fixed minimum width. See {{ Xref_csslength() }} for possible units. Negative values make the declaration invalid.
<percentage>
The fixed minimum width expressed as a {{ Xref_csspercentage() }} of containing block's width. Negative values make the declaration invalid.
max-content {{ experimental_inline() }}
The intrinsic preferred width.
min-content {{ experimental_inline() }}
The intrinsic minimum width.
fill-available{{ experimental_inline() }}
The containing block width minus horizontal margin, border and padding. Some browsers implement an ancient name for this keyword, available.
fit-content {{ experimental_inline() }}
According CSS3 Box, this is a synonym of min-content. CSS3 Sizing defines a more complex algorithm, but no browser implements it, even in an experimental way.

Examples

table { min-width: 75%; }

form { min-width: 0; }

Specifications

Specification Status Comment
{{ SpecName('CSS3 Sizing', '#width-height-keywords', 'min-width') }} {{ Spec2('CSS3 Sizing') }} Adds the max-content, min-content, fit-content, and fill-available keywords.
Both CSS3 Box and CSS3 Writing Modes drafts defined at some point these keywords. These drafts are superseded by this spec.
{{ SpecName('CSS3 Flexbox', '#min-auto', 'min-width') }} {{ Spec2('CSS3 Flexbox') }} Adds the auto keyword and uses it as the initial value.
{{ SpecName('CSS3 Transitions', '#animatable-css', 'min-width') }} {{ Spec2('CSS3 Transitions') }} Defines min-width as animatable.
{{ SpecName('CSS2.1', 'visudet.html#min-max-widths', 'min-width') }} {{ Spec2('CSS2.1') }} Initial definition.

Browser compatibility

{{ CompatibilityTable() }}

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 1.0 1.0 (1.0) 7.0 4.0 2.0.2 (416), buggy before
applies to <table> [1] {{ CompatNo() }} {{ CompatVersionUnknown() }} {{ CompatNo() }} {{ CompatVersionUnknown() }} {{ CompatNo() }}
max-content, min-content, fit-content, and fill-available {{ experimental_inline() }} {{ CompatNo() }} [3] {{ CompatGeckoDesktop("1.9") }} {{ property_prefix("-moz") }} [2] {{ CompatNo() }} {{ CompatNo() }} {{ CompatNo() }} [3]
auto 21.0 {{ CompatGeckoDesktop("16.0") }} {{ CompatNo() }} 12.10 {{ CompatNo() }}
auto as initial value 21.0 {{ CompatGeckoDesktop("18.0") }} {{ CompatNo() }} 12.10 {{ CompatNo() }}
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }}

Notes

[1] CSS 2.1 explicitly leaves the behavior of min-width 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.

[2] Gecko experimentally implements the definitions given in CSS3 Basic Box. This one defines available and not fill-available. Also the definition of fit-content is simpler than in CSS3 Intrinsic.

[3] WebKit implements an earlier proposal, the keyword intrinsic.

See also

  • {{ Cssxref("width") }}, {{ Cssxref("max-width") }}, {{ Cssxref("min-height") }}
  • The box model, {{ Cssxref("box-sizing") }}

Revision Source

<p>{{ CSSRef() }}</p>
<h2 id="Summary">Summary</h2>
<p>The <code>min-width</code> CSS property is used to set the minimum width of a given element. It prevents the used value of the {{ Cssxref("width") }} property from becoming smaller than the value specified for <code>min-width</code>.</p>
<p>The value of <code>min-width </code>overrides both {{ Cssxref("max-width") }} and {{ Cssxref("width") }}.</p>
<p>{{cssbox("min-width")}}</p>
<h2 id="Syntax">Syntax</h2>
<pre class="twopartsyntaxbox">
<a href="/en-US/docs/CSS/Value_definition_syntax" title="CSS/Value_definition_syntax">Formal syntax</a>: {{csssyntax("min-width")}}</pre>
<pre>
min-width: 3.5em
min-width: 10%
min-width: max-content
min-width: min-content
min-width: fit-content
min-width: fill-available

min-width: inherit
</pre>
<h3 id="Values">Values</h3>
<dl>
  <dt>
    <code>&lt;length&gt;</code></dt>
  <dd>
    The fixed minimum width. See {{ Xref_csslength() }} for possible units. Negative values make the declaration invalid.</dd>
  <dt>
    <code>&lt;percentage&gt;</code></dt>
  <dd>
    The fixed minimum width expressed as a {{ Xref_csspercentage() }} of containing block's width. Negative values make the declaration invalid.</dd>
  <dt>
    <code>max-content</code> {{ experimental_inline() }}</dt>
  <dd>
    The intrinsic preferred width.</dd>
  <dt>
    <code>min-content</code> {{ experimental_inline() }}</dt>
  <dd>
    The intrinsic minimum width.</dd>
  <dt>
    <code>fill-available</code>{{ experimental_inline() }}</dt>
  <dd>
    The containing block width 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">Examples</h2>
<pre class="brush:css;">
table { min-width: 75%; }

form { min-width: 0; }
</pre>
<h2 id="Specifications">Specifications</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('CSS3 Sizing', '#width-height-keywords', 'min-width') }}</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-width') }}</td>
      <td>{{ Spec2('CSS3 Flexbox') }}</td>
      <td>Adds the <code>auto</code> keyword and uses it as the initial value.</td>
    </tr>
    <tr>
      <td>{{ SpecName('CSS3 Transitions', '#animatable-css', 'min-width') }}</td>
      <td>{{ Spec2('CSS3 Transitions') }}</td>
      <td>Defines <code>min-width</code> as animatable.</td>
    </tr>
    <tr>
      <td>{{ SpecName('CSS2.1', 'visudet.html#min-max-widths', 'min-width') }}</td>
      <td>{{ Spec2('CSS2.1') }}</td>
      <td>Initial definition.</td>
    </tr>
  </tbody>
</table>
<h2 id="Browser_compatibility" name="Browser_compatibility">Browser compatibility</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>1.0 (1.0)</td>
        <td>7.0</td>
        <td>4.0</td>
        <td>2.0.2 (416), buggy before</td>
      </tr>
      <tr>
        <td>applies to <code>&lt;table&gt; </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() }} [3]</td>
        <td>{{ CompatGeckoDesktop("1.9") }} {{ property_prefix("-moz") }} [2]</td>
        <td>{{ CompatNo() }}</td>
        <td>{{ CompatNo() }}</td>
        <td>{{ CompatNo() }} [3]</td>
      </tr>
      <tr>
        <td><code>auto</code></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</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>
      </tr>
      <tr>
        <th>Feature</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>Basic support</td>
        <td>{{ CompatUnknown() }}</td>
        <td>{{ CompatUnknown() }}</td>
        <td>{{ CompatUnknown() }}</td>
        <td>{{ CompatUnknown() }}</td>
        <td>{{ CompatUnknown() }}</td>
        <td>{{ CompatUnknown() }}</td>
      </tr>
    </tbody>
  </table>
</div>
<h3 id="Notes">Notes</h3>
<p>[1] CSS 2.1 explicitly leaves the behavior of <code>min-width</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] Gecko experimentally implements the definitions given in CSS3 Basic Box. This one defines <code>available</code> and not <code>fill-available</code>. Also the definition of <code>fit-content</code> is simpler than in CSS3 Intrinsic.</p>
<p>[3] WebKit implements an earlier proposal, the keyword <code>intrinsic</code>.</p>
<h2 id="See_also">See also</h2>
<ul>
  <li>{{ Cssxref("width") }}, {{ Cssxref("max-width") }}, {{ Cssxref("min-height") }}</li>
  <li>The <a href="/en-US/docs/CSS/box_model" title="en/CSS/box_model">box model</a>, {{ Cssxref("box-sizing") }}</li>
</ul>
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