title: why the divs shrink while using display :flex?
body: <p>why the divs shrink while using display :flex .I want to scroll my divs horizontally .but it not taking width height <code>100</code> and <code>100</code>?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.wrapper {
    display: flex;
    width: 300px;
    overflow-x: auto;
  }
  
  .box {
    height: 100px;
    width: 100px;
    margin-right: 10px;
    background-color: blue
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="wrapper"&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
    &lt;div class="box"&gt;&lt;/div&gt;
  
  
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>