title: Flexbox not working in Internet Explorer 11
body: <p>This piece of code works fine in Firefox, Chrome and Edge, but it does not work properly in IE11 because of flex model, apparently. How can I fix it?</p>
  
  <p><strong>This is how it looks in Firefox</strong></p>
  
  <p><a href="https://i.stack.imgur.com/BJgVt.png" rel="noreferrer"><img src="https://i.stack.imgur.com/BJgVt.png" alt="enter image description here"></a></p>
  
  <p><strong>This is how it looks in IE11</strong></p>
  
  <p><a href="https://i.stack.imgur.com/Fedul.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Fedul.png" alt="enter image description here"></a></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>body * {
    box-sizing: border-box;
  }
  html {
    height: 100%;
  }
  body {
    min-height: 100%;
    display: flex;
    flex-flow: column;
    margin: 0;
  }
  main {
    flex: 1;
    display: flex;
  }
  header,
  footer {
    background: #7092BF;
    border: solid;
    width: 100%;
  }
  section {
    border: solid;
    background: #9AD9EA;
    flex: 1
  }
  aside {
    border: solid;
    width: 150px;
    background: #3E48CC
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;header&gt;
    &lt;p&gt;header
  &lt;/header&gt;
  &lt;main&gt;
    &lt;aside&gt;
      &lt;p&gt;aside
      &lt;p&gt;aside
    &lt;/aside&gt;
    &lt;section&gt;
      &lt;p&gt;content
      &lt;p&gt;content
      &lt;p&gt;content
      &lt;p&gt;content
    &lt;/section&gt;
  &lt;/main&gt;
  &lt;footer&gt;
    &lt;p&gt;footer
    &lt;p&gt;footer
  &lt;/footer&gt;</code></pre>
  </div>
  </div>
  </p>