---
title: object-fit
slug: Web/CSS/object-fit
translation_of: Web/CSS/object-fit
---
<div>{{CSSRef}}</div>

<h2 id="Summary" name="Summary">Summary</h2>

<p>The <strong><code>object-fit</code></strong> CSS property specifies how the contents of a replaced element should be fitted to the box established by its used height and width.</p>

<p>物件契合(<strong><code>object-fit)</code></strong>CSS屬性能指定置換元素(replaced element)的內容要如何契合、安裝到其使用的高度和寬度已確定的框。</p>

<p> </p>

<p>{{cssinfo}}</p>

<h2 id="Syntax" name="Syntax">Syntax</h2>

<pre class="brush:css">/* Keyword values */
object-fit: fill;
object-fit: contain;
object-fit: cover;
object-fit: none;
object-fit: scale-down;

/* Global values */
object-fit: inherit;
object-fit: initial;
object-fit: unset;
</pre>

<h3 id="Values" name="Values">Values</h3>

<dl>
 <dt><code>fill</code></dt>
 <dd>The replaced content is sized to fill the element’s content box: the object’s concrete object size is the element’s used width and height.</dd>
 <dt><code>contain</code></dt>
 <dd>The replaced content is sized to maintain its aspect ratio while fitting within the element’s content box: its concrete object size is resolved as a contain constraint against the element’s used width and height.</dd>
 <dt><code>cover</code></dt>
 <dd>The replaced content is sized to maintain its aspect ratio while filling the element’s entire content box: its concrete object size is resolved as a cover constraint against the element’s used width and height.</dd>
 <dt><code>none</code></dt>
 <dd>The replaced content is not resized to fit inside the element’s content box: the object’s concrete object size is determined using the default sizing algorithm with no specified size, and a default object size equal to the replaced element’s used width and height.</dd>
 <dt><code>scale-down</code></dt>
 <dd>The content is sized as if <code>none</code> or <code>contain</code> were specified, whichever would result in a smaller concrete object size.</dd>
</dl>

<h3 id="Formal_syntax">Formal syntax</h3>

{{csssyntax}}

<h2 id="Example" name="Example">Example</h2>

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

<pre class="brush: html">&lt;div&gt;
  &lt;h2&gt;object-fit: fill&lt;/h2&gt;
  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="fill"/&gt;

  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="fill narrow"/&gt;

  &lt;h2&gt;object-fit: contain&lt;/h2&gt;
  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="contain"/&gt;

  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="contain narrow"/&gt;

  &lt;h2&gt;object-fit: cover&lt;/h2&gt;
  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="cover"/&gt;

  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="cover narrow"/&gt;

  &lt;h2&gt;object-fit: none&lt;/h2&gt;
  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="none"/&gt;

  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="none narrow"/&gt;

  &lt;h2&gt;object-fit: scale-down&lt;/h2&gt;
  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="scale-down"/&gt;

  &lt;img src="https://mdn.mozillademos.org/files/6457/mdn_logo_only_color.png" alt="MDN Logo" class="scale-down narrow"/&gt;

&lt;/div&gt;</pre>

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

<pre class="brush: css">h2 {
  font-family: Courier New, monospace;
  font-size: 1em;
  margin: 1em 0 0.3em;
}

div {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  align-items: flex-start;
  height: 940px;
}

img {
  width: 150px;
  height: 100px;
  border: 1px solid #000;
}

.narrow {
  width: 100px;
  height: 150px;
  margin-top: 10px;
}

.fill {
  object-fit: fill;
}

.contain {
  object-fit: contain;
}

.cover {
  object-fit: cover;
}

.none {
  object-fit: none;
}

.scale-down {
  object-fit: scale-down;
}
</pre>

<h3 id="Output">Output</h3>

<p>{{ EmbedLiveSample('Example', 500, 450) }}</p>

<h2 id="Specifications" name="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('CSS4 Images', '#the-object-fit', 'object-fit')}}</td>
   <td>{{Spec2('CSS4 Images')}}</td>
   <td>The <code>from-image</code> and <code>flip</code> keywords have been added.</td>
  </tr>
  <tr>
   <td>{{SpecName('CSS3 Images', '#the-object-fit', 'object-fit')}}</td>
   <td>{{Spec2('CSS3 Images')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility" name="Browser_compatibility">Browser compatibility</h2>

{{Compat("css.properties.object-fit")}}

<h2 id="See_also" name="See_also">See also</h2>

<ul>
 <li>Other image-related CSS properties: {{cssxref("object-position")}}, {{cssxref("image-orientation")}}, {{cssxref("image-rendering")}}, {{cssxref("image-resolution")}}.</li>
</ul>