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---
title: بزرگنمایی
slug: Web/CSS/zoom
translation_of: Web/CSS/zoom
original_slug: Web/CSS/بزرگنمایی
---
<div>{{CSSRef}}{{Non-standard_header}}</div>
<p><span class="seoSummary">The non-standard <strong><dfn><code>zoom</code></dfn></strong> <a href="/en-US/docs/Web/CSS">CSS</a> property can be used to control the magnification level of an element.</span> {{cssxref("transform-function/scale", "transform: scale()")}} should be used instead of this property, if possible. However, unlike CSS Transforms, <code>zoom</code> affects the layout size of the element.</p>
<pre class="brush: css no-line-numbers">/* Keyword values */
zoom: normal;
zoom: reset;
/* <percentage> values */
zoom: 50%;
zoom: 200%;
/* <number> values */
zoom: 1.1;
zoom: 0.7;
/* Global values */
zoom: inherit;
zoom: initial;
zoom: unset;</pre>
<p>{{cssinfo}}</p>
<h2 id="Syntax">Syntax</h2>
<h3 id="Values">Values</h3>
<dl>
<dt><code>normal</code></dt>
<dd>Render this element at its normal size.</dd>
<dt><code>reset</code> {{non-standard_inline}}</dt>
<dd>Do not (de)magnify this element if the user applies non-pinch-based zooming (e.g. by pressing <kbd>Ctrl</kbd>-<kbd>-</kbd> or <kbd>Ctrl</kbd>+<kbd>+</kbd> keyboard shortcuts) to the document. Only supported by WebKit (and possibly Blink).</dd>
<dt>{{cssxref("<percentage>")}}</dt>
<dd>Zoom factor. <code>100%</code> is equivalent to <code>normal</code>. Values larger than <code>100%</code> zoom in. Values smaller than <code>100%</code> zoom out.</dd>
<dt>{{cssxref("<number>")}}</dt>
<dd>Zoom factor. Equivalent to the corresponding percentage (<code>1.0</code> = <code>100%</code> = <code>normal</code>). Values larger than <code>1.0</code> zoom in. Values smaller than <code>1.0</code> zoom out.</dd>
</dl>
<h3 id="Formal_syntax">Formal syntax</h3>
<pre class="syntaxbox">{{csssyntax}}</pre>
<h2 id="Examples">Examples</h2>
<h3 id="First_example">First example</h3>
<h4 id="HTML">HTML</h4>
<pre class="brush: html"><p class="small">Small</p>
<p class="normal">Normal</p>
<p class="big">Big</p></pre>
<h4 id="CSS">CSS</h4>
<pre class="brush: css">p.small {
zoom: 75%;
}
p.normal {
zoom: normal;
}
p.big {
zoom: 2.5;
}
p {
display: inline-block;
}
p:hover {
zoom: reset;
}
</pre>
<h4 id="Result">Result</h4>
<p>{{EmbedLiveSample('First_example')}}</p>
<h3 id="Second_example">Second example</h3>
<h4 id="HTML_2">HTML</h4>
<pre class="brush: html"><div id="a" class="circle"></div>
<div id="b" class="circle"></div>
<div id="c" class="circle"></div></pre>
<h4 id="CSS_2">CSS</h4>
<pre class="brush: css">div.circle {
width: 25px;
height: 25px;
border-radius: 100%;
text-align: center;
vertical-align: middle;
display: inline-block;
zoom: 1.5;
}
div#a {
background-color: gold;
zoom: normal;
}
div#b {
background-color: green;
zoom: 200%;
}
div#c {
background-color: blue;
zoom: 2.9;
}
</pre>
<h4 id="Result_2">Result</h4>
<p>{{EmbedLiveSample('Second_example')}}</p>
<h2 id="Specifications">Specifications</h2>
<p>This property is nonstandard and originated in Internet Explorer. Apple has <a href="https://developer.apple.com/library/safari/documentation/AppleApplications/Reference/SafariCSSRef/Articles/StandardCSSProperties.html#//apple_ref/doc/uid/TP30001266-SW15">a description in the Safari CSS Reference</a>. Rossen Atanassov of Microsoft has <a href="http://cdn.rawgit.com/atanassov/css-zoom/master/Overview.html">an unofficial draft specification proposal on GitHub</a>.</p>
<h2 id="Browser_compatibility">Browser compatibility</h2>
<p>{{Compat("css.properties.zoom")}}</p>
<h2 id="See_also">See also</h2>
<ul>
<li><a href="https://css-tricks.com/almanac/properties/z/zoom/"><code>zoom</code> entry in CSS-Tricks' CSS Almanac</a></li>
<li>The <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/@viewport/zoom"><code>zoom</code> viewport descriptor</a>, for use with <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/@viewport"><code>@viewport</code></a></li>
<li><a href="https://bugzilla.mozilla.org/show_bug.cgi?id=390936">Bug 390936: Implement Internet Explorer <code>zoom</code> property for CSS </a>on the Firefox issue tracker Bugzilla</li>
</ul>
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