我正在使用 Bootsrap 4 卡片的类“卡片页脚”，但页脚未与页面底部对齐。
这是js小提琴的链接
<div class="container">
<div class="card text-center">
<div class="card-header">Featured</div>
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<p class="card-text">This text should be equi-distance from header
and footer. </p>
<p class="card-text">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nullam
sapien sem, ornare ac, nonummy non, lobortis a enim. Nam sed
tellus id magna elementum tincidunt. Pellentesque habitant morbi
tristique senectus et netus et malesuada fames ac turpis egestas.
Aliquam ornare wisi eu metus. In enim a arcu …