How to make Bootstrap 4 cards the same height in card-columns?
<p>I am using Bootstrap 4 alpha 2 and taking advantage on cards. 
Specifically, I am working with <a href="http://v4-alpha.getbootstrap.com/components/card/#columns" rel="noreferrer">this example</a> taken from the official docs. How can I make all cards to be the same height?</p>

<p>All I can think by now is setting the following CSS rule:</p>

<pre><code>.card {
    min-height: 200px;
}
</code></pre>

<p>But that is just a hard coded solution that won't work in a general case.
The code in my view is the same as the one in the docs i.e:</p>

<pre><code>&lt;div class="card-columns"&gt;
  &lt;div class="card"&gt;
    &lt;img class="card-img-top" data-src="..." alt="Card image cap"&gt;
    &lt;div class="card-block"&gt;
      &lt;h4 class="card-title"&gt;Card title that wraps to a new line&lt;/h4&gt;
      &lt;p class="card-text"&gt;This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.&lt;/p&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  &lt;div class="card card-block"&gt;
    &lt;blockquote class="card-blockquote"&gt;
      &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.&lt;/p&gt;
      &lt;footer&gt;
        &lt;small class="text-muted"&gt;
          Someone famous in &lt;cite title="Source Title"&gt;Source Title&lt;/cite&gt;
        &lt;/small&gt;
      &lt;/footer&gt;
    &lt;/blockquote&gt;
  &lt;/div&gt;
  &lt;div class="card"&gt;
    &lt;img class="card-img-top" data-src="..." alt="Card image cap"&gt;
    &lt;div class="card-block"&gt;
      &lt;h4 class="card-title"&gt;Card title&lt;/h4&gt;
      &lt;p class="card-text"&gt;This card has supporting text below as a natural lead-in to additional content.&lt;/p&gt;
      &lt;p class="card-text"&gt;&lt;small class="text-muted"&gt;Last updated 3 mins ago&lt;/small&gt;&lt;/p&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  &lt;div class="card card-block card-inverse card-primary text-xs-center"&gt;
    &lt;blockquote class="card-blockquote"&gt;
      &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat.&lt;/p&gt;
      &lt;footer&gt;
        &lt;small&gt;
          Someone famous in &lt;cite title="Source Title"&gt;Source Title&lt;/cite&gt;
        &lt;/small&gt;
      &lt;/footer&gt;
    &lt;/blockquote&gt;
  &lt;/div&gt;
  &lt;div class="card card-block text-xs-center"&gt;
    &lt;h4 class="card-title"&gt;Card title&lt;/h4&gt;
    &lt;p class="card-text"&gt;This card has supporting text below as a natural lead-in to additional content.&lt;/p&gt;
    &lt;p class="card-text"&gt;&lt;small class="text-muted"&gt;Last updated 3 mins ago&lt;/small&gt;&lt;/p&gt;
  &lt;/div&gt;
  &lt;div class="card"&gt;
    &lt;img class="card-img" data-src="..." alt="Card image"&gt;
  &lt;/div&gt;
  &lt;div class="card card-block text-xs-right"&gt;
    &lt;blockquote class="card-blockquote"&gt;
      &lt;p&gt;Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.&lt;/p&gt;
      &lt;footer&gt;
        &lt;small class="text-muted"&gt;
          Someone famous in &lt;cite title="Source Title"&gt;Source Title&lt;/cite&gt;
        &lt;/small&gt;
      &lt;/footer&gt;
    &lt;/blockquote&gt;
  &lt;/div&gt;
  &lt;div class="card card-block"&gt;
    &lt;h4 class="card-title"&gt;Card title&lt;/h4&gt;
    &lt;p class="card-text"&gt;This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.&lt;/p&gt;
    &lt;p class="card-text"&gt;&lt;small class="text-muted"&gt;Last updated 3 mins ago&lt;/small&gt;&lt;/p&gt;
  &lt;/div&gt;
&lt;/div&gt;
</code></pre>