title: flexbox height adjust to content
body: <p>I use a &quot;full design&quot; flexbox.
  I have a weird issue : I have a container that takes all the remaining space and I want in this container that the child, which is also flexbox, to have their height adjust to their content.</p>
  <p>Here is the issue:</p>
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="false" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>body, html {
    width:100%;
    height:100%;
    display:flex;
  }
  
  .container {
    display:flex;
    flex:1;
    flex-wrap:wrap;
  }
  
  .icon {
    width:10vh;
    margin:10px;
    display:flex;
    flex-direction:column;
  }
  .img {
    width:10vh;
    height:10vh;
    display:flex;
    align-items:center;
    justify-content:center;
    background-color:red;
  }
  
  .text {
    text-align:center;
    
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="container"&gt;
  &lt;div class="icon"&gt;
  &lt;div class="img"&gt;
  &lt;/div&gt;
  &lt;div class="text"&gt;
  action 1
  &lt;/div&gt;
  &lt;/div&gt;
  &lt;div class="icon"&gt;
  &lt;div class="img"&gt;
  &lt;/div&gt;
  &lt;div class="text"&gt;
  Action 2
  &lt;/div&gt;
  &lt;/div&gt;
  
  &lt;div class="icon"&gt;
  &lt;div class="img"&gt;
  &lt;/div&gt;
  &lt;div class="text"&gt;
  Action 3
  &lt;/div&gt;
  &lt;/div&gt;
  
  &lt;div class="icon"&gt;
  &lt;div class="img"&gt;
  &lt;/div&gt;
  &lt;div class="text"&gt;
  Action 4
  &lt;/div&gt;
  &lt;/div&gt;
  
  &lt;div class="icon"&gt;
  &lt;div class="img"&gt;
  &lt;/div&gt;
  &lt;div class="text"&gt;
  Action 5
  &lt;/div&gt;
  &lt;/div&gt;
  
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  <p>As you can see, the icon takes the full height of the container : in fact, I don't want to specify a height because I don't know the text length and really want that, if the content is huge, the icon takes the height of its content ( don't want to cut the text). Moreover, if the page is resized, I really want the icon to be aligned (like on smartphone).</p>
  <p>Also, I don't understand why the icon takes the height of its parent and not its content because I didn't specify &quot;flex:1&quot; on it. I assume that the default behaviour it's to fit the content size, but this seems not to be working.</p>
  <p><a href="https://i.stack.imgur.com/Nv2ED.png" rel="nofollow noreferrer">image of the issue</a></p>