Bootstrap 4 cards card columns

<!DOCTYPE html>
<title>My Example</title>

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<div class="card">
<div class="card-header">Card 1</div>
<div class="card-body">
<p class="card-text">Text for this card.</p>
</div>
</div>

<div class="card">
<div class="card-body">
<h4 class="card-title">Card 2</h4>
<p class="card-text">Text for this card.</p>
</div>
</div>

<div class="card">
<div class="card-header">Card 3</div>
<div class="card-body">
<p class="card-text">Text for this card. Here's <a href="#" class="card-link">why</a>.</p>
</div>
<div class="card-footer">Footer</div>
</div>

<div class="card">
<div class="card-header">Card 4</div>
<div class="card-body">
<p class="card-text">Text for this card.</p>
</div>
<div class="card-footer">Footer</div>
</div>

<div class="card">
<div class="card-body">
<h4 class="card-title">Card 5</h4>
<p class="card-text">Text for this card.</p>
</div>
</div>

<div class="card">
<div class="card-header">Card 6</div>
<div class="card-body">
<p class="card-text">Text for this card. Here's <a href="#" class="card-link">why</a>.</p>
</div>
</div>

<div class="card">
<div class="card-header">Card 7</div>
<div class="card-body">
<p class="card-text">Text for this card. Here's <a href="#" class="card-link">why</a>.</p>
</div>
<div class="card-footer">Footer</div>
</div>

<div class="card">
<div class="card-body">
<h4 class="card-title">Card 8</h4>
<p class="card-text">Text for this card.</p>
</div>
</div>

</div>

</div>
		

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<script>
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  $('[data-toggle="tooltip"]').tooltip()
})

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$(function () {
  $('[data-toggle="popover"]').popover()
})
</script>