title: align-items: center makes img disappear
body: <p>So with the grid, when I don't have <code>align-items: center;</code> the img shows fine, but once I add <code>align-items: center;</code> it suddenly disappears. What's causing this issue?</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>.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 100px;
  }
  
  img {
    display: block;
    max-height: 100%;
    margin: 0 auto;
  }
  
  .align {
    align-items: center;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="grid"&gt;
    &lt;div&gt;
      &lt;span&gt;text&lt;/span&gt;
    &lt;/div&gt;
    &lt;div&gt;
      &lt;img src="http://via.placeholder.com/650x1050" /&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  
  &lt;div class="grid align"&gt;
    &lt;div&gt;
      &lt;span&gt;text&lt;/span&gt;
    &lt;/div&gt;
    &lt;div&gt;
      &lt;img src="http://via.placeholder.com/650x1050" /&gt;
    &lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>This seems to be a Chrome issue. It's also not fitting the img properly on firefox.</p>