title: Why h-100 does not work?
body: <p>I have the following layout:</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-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html lang="en"&gt;
  &lt;head&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;meta http-equiv="X-UA-Compatible" content="IE=edge"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"&gt;
    &lt;meta http-equiv="x-ua-compatible" content="ie=edge"&gt;
    &lt;link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous"&gt;
    &lt;title&gt;Bootstrap&lt;/title&gt;
  &lt;/head&gt;
  &lt;body&gt;
  
  &lt;div class="container bg-danger h-100"&gt;
    &lt;div class="bg-warning border p-1"&gt;Exotic&lt;/div&gt;
    &lt;div class="bg-warning border p-1"&gt;Grooming&lt;/div&gt;
    &lt;div class="bg-warning border p-1"&gt;Health&lt;/div&gt;
    &lt;div class="bg-warning border p-1"&gt;Nutrition&lt;/div&gt;
    &lt;div class="bg-warning border p-1"&gt;Pests&lt;/div&gt;
    &lt;div class="bg-warning border p-1"&gt;Vaccinations&lt;/div&gt;
  &lt;/div&gt;&lt;!-- container --&gt;
  
  &lt;script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"&gt;&lt;/script&gt;
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"&gt;&lt;/script&gt;
  &lt;script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js" integrity="sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm" crossorigin="anonymous"&gt;&lt;/script&gt;
  &lt;/body&gt;
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>The question is, why the <code>div</code> container is not 100 percent height?  </p>
  
  <p>Thanks</p>