title: Align multiple elements with flex
body: <p>I want to do something like that with flexbox:</p>
  
  <p><a href="https://i.stack.imgur.com/VdSHd.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VdSHd.jpg" 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>.wrap {
    display: flex;
    flex-wrap: wrap;
  }
  .elem1 {
    width: 20%;
    height: 100px;
    border: 1px solid red;
  }
  .elem2, .elem3 {
    width: 75%;
    border: 1px solid red;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="wrap"&gt;
    &lt;div class="elem1"&gt;1&lt;/div&gt;
    &lt;div class="elem2"&gt;2&lt;/div&gt;
    &lt;div class="elem3"&gt;3&lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p><a href="https://jsfiddle.net/3eww4c3d/" rel="nofollow noreferrer">JSFIDDLE</a></p>