---
title: flex-grow
slug: Web/CSS/flex-grow
tags:
  - CSS
  - CSS Flexible Boxes
  - CSS Property
  - NeedsContent
  - Reference
translation_of: Web/CSS/flex-grow
---
<div>{{CSSRef}}</div>

<p><strong><code>flex-grow</code></strong> <a href="/en-US/docs/Web/CSS">CSS</a> property 는 <code>flex-item</code> 요소가, <code>flex-container</code> 요소 내부에서 할당 가능한 공간의 정도를 선언합니다. 만약 <strong>형제 요소</strong>로 렌더링 된 모든 <code>flex-item</code> 요소들이 동일한 <code>flex-grow</code> 값을 갖는다면, <code>flex-container</code> 내부에서 동일한 공간을 할당받습니다. 하지만 <code>flex-grow</code> 값으로 다른 소수값을 지정한다면, 그에 따라 다른 공간값을 나누어 할당받게 됩니다.</p>

<p>보통 <code>flex-grow</code>를 사용할땐, {{ Cssxref("flex-shrink") }}, {{ Cssxref("flex-basis") }} 속성을 함께 사용합니다. 그리고 일반적으로는 모든 값이 설정되었음을 보장하기 위하여 {{ Cssxref("flex") }} 속성을 이용해 <strong>축약형</strong>으로 사용합니다.</p>

<div>{{EmbedInteractiveExample("pages/css/flex-grow.html")}}</div>



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

<pre class="brush:css no-line-numbers">/* &lt;number&gt; values */
flex-grow: 3;
flex-grow: 0.6;

/* Global values */
flex-grow: inherit;
flex-grow: initial;
flex-grow: unset;
</pre>

<p><code>flex-grow</code> 속성에 대한 값은 <code><a href="#&lt;number>">&lt;number&gt;</a></code> 단독으로 표현합니다.</p>

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

<dl>
 <dt><a id="&lt;number>" name="&lt;number>"><code>&lt;number&gt;</code></a></dt>
 <dd>관련 링크를 참고하세요. {{cssxref("&lt;number&gt;")}}. 단, 음수값은 허용되지 않습니다.</dd>
</dl>

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

{{csssyntax}}

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

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

<div id="Live_Sample">
<pre class="brush: html">&lt;h4&gt;This is a Flex-Grow&lt;/h4&gt;
&lt;h5&gt;A,B,C and F are flex-grow:1 . D and E are flex-grow:2 .&lt;/h5&gt;
&lt;div id="content"&gt;
  &lt;div class="box" style="background-color:red;"&gt;A&lt;/div&gt;
  &lt;div class="box" style="background-color:lightblue;"&gt;B&lt;/div&gt;
  &lt;div class="box" style="background-color:yellow;"&gt;C&lt;/div&gt;
  &lt;div class="box1" style="background-color:brown;"&gt;D&lt;/div&gt;
  &lt;div class="box1" style="background-color:lightgreen;"&gt;E&lt;/div&gt;
  &lt;div class="box" style="background-color:brown;"&gt;F&lt;/div&gt;
&lt;/div&gt;
</pre>

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

<pre class="brush: css">#content {
  display: flex;

  justify-content: space-around;
  flex-flow: row wrap;
  align-items: stretch;
}

.box {
  flex-grow: 1;
  border: 3px solid rgba(0,0,0,.2);
}

.box1 {
  flex-grow: 2;
  border: 3px solid rgba(0,0,0,.2);
}
</pre>
</div>

<h3 id="Result">Result</h3>

<p>{{EmbedLiveSample('Example', '700px', '300px', '', 'Web/CSS/flex-grow')}}</p>

<h2 id="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('CSS3 Flexbox','#flex-grow-property','flex-grow')}}</td>
   <td>{{Spec2('CSS3 Flexbox')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

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

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



<p>{{Compat("css.properties.flex-grow")}}</p>

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

<ul>
 <li>CSS Flexbox Guide: <em><a href="/en-US/docs/Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox">Basic Concepts of Flexbox</a></em></li>
 <li>CSS Flexbox Guide: <em><a href="/en-US/docs/Web/CSS/CSS_Flexible_Box_Layout/Controlling_Ratios_of_Flex_Items_Along_the_Main_Ax">Controlling Ratios of flex items along the main axis</a></em></li>
 <li><a href="https://css-tricks.com/flex-grow-is-weird/">`flex-grow` is weird. Or is it?</a> article by Manuel Matuzovic on CSS-Tricks, which illustrates how flex-grow works</li>
</ul>