twitter-bootstrap 如何使页脚在 Bootstrap 卡片组件的底部对齐

How do I make footer line up at the bottom of Bootstrap cards component

提问by Ken

Im trying to work on some CSS and I am using Bootstrap and the component "cards"

我正在尝试处理一些 CSS，我正在使用 Bootstrap 和组件“卡片”

When you have them in a class called "card-deck" you can group them to all be the same height. But when one is longer than the other the actual footers in the cards themselves do not align to the bottom of the card.

当你把它们放在一个叫做“卡片组”的类中时，你可以将它们组合成相同的高度。但是当一个比另一个长时，卡片本身的实际页脚不会与卡片底部对齐。

Is there a way to easily force the footer to the bottom on a shorter card?

有没有办法在较短的卡片上轻松地将页脚强制到底部？

MY FIDDLE

我的小提琴

.row {
  padding-top: 50px;
}

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css" rel="stylesheet" />

<div class="container">
  <div class="row">
    <div class="card-deck-wrapper">
      <div class="card-deck">
        <div class="card text-xs-center">
          <div class="card-header">
            Featured
          </div>
          <div class="card-block">
            <h4 class="card-title">Special title treatment</h4>
            <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
            <a href="#" class="btn btn-primary">Go somewhere</a>
          </div>
          <div class="card-footer text-muted">
            2 days ago
          </div>
        </div>
        <div class="card text-xs-center">
          <div class="card-header">
            Featured
          </div>
          <div class="card-block">
            <h4 class="card-title">Special title treatment</h4>
            <p class="card-text">Aenean lacinia bibendum nulla sed consectetur. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit. Etiam porta sem malesuada
              magna mollis euismod. Aenean lacinia bibendum nulla sed consectetur. Donec id elit non mi porta gravida at eget metus. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Aenean lacinia bibendum nulla sed consectetur. Donec sed
              odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Maecenas faucibus mollis interdum.</p>
            <a href="#" class="btn btn-primary">Go somewhere</a>
          </div>
          <div class="card-footer text-muted">
            2 days ago
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

回答by Kapil

use position:absolutefor footer

使用position:absolute的页脚

.row {
  padding-top: 50px;
}
.card-footer{
position:absolute;
  bottom:0;
  width:100%;
}
.card-deck .card{
  padding-bottom:50px;
  }

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css" rel="stylesheet" />

<div class="container">
  <div class="row">
    <div class="card-deck-wrapper">
      <div class="card-deck">
        <div class="card text-xs-center">
          <div class="card-header">
            Featured
          </div>
          <div class="card-block">
            <h4 class="card-title">Special title treatment</h4>
            <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
            <a href="#" class="btn btn-primary">Go somewhere</a>
          </div>
          <div class="card-footer text-muted">
            2 days ago
          </div>
        </div>
        <div class="card text-xs-center">
          <div class="card-header">
            Featured
          </div>
          <div class="card-block">
            <h4 class="card-title">Special title treatment</h4>
            <p class="card-text">Aenean lacinia bibendum nulla sed consectetur. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit. Etiam porta sem malesuada
              magna mollis euismod. Aenean lacinia bibendum nulla sed consectetur. Donec id elit non mi porta gravida at eget metus. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Aenean lacinia bibendum nulla sed consectetur. Donec sed
              odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Maecenas faucibus mollis interdum.</p>
            <a href="#" class="btn btn-primary">Go somewhere</a>
          </div>
          <div class="card-footer text-muted">
            2 days ago
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

回答by Uygar

I had the same problem and couldn't find the solution for days. Then I learned flexbox. You can solve it by changing

我遇到了同样的问题，好几天都找不到解决方案。然后我学习了 flexbox。您可以通过更改来解决它

<div class="card">...</div> 

to

到

<div class="card h-100 d-flex flex-column justify-content-between">...</div>

It works with Bootstrap 4, I don't know about other versions.

它适用于 Bootstrap 4，我不知道其他版本。

回答by Anuga

Or just use the correct Bootstrap classes, card-bodyinstead of card-block

或者只使用正确的 Bootstrap 类，card-body而不是card-block

.row {
  padding-top: 50px;
}

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js" integrity="sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous">

<div class="container">
  <div class="row">
    <div class="card-deck-wrapper">
      <div class="card-deck">
        <div class="card text-xs-center">
          <div class="card-header">
            Featured
          </div>
          <div class="card-body">
            <h4 class="card-title">Special title treatment</h4>
            <p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
            <a href="#" class="btn btn-primary">Go somewhere</a>
          </div>
          <div class="card-footer text-muted">
            2 days ago
          </div>
        </div>
        <div class="card text-xs-center">
          <div class="card-header">
            Featured
          </div>
          <div class="card-body">
            <h4 class="card-title">Special title treatment</h4>
            <p class="card-text">Aenean lacinia bibendum nulla sed consectetur. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit. Etiam porta sem malesuada
              magna mollis euismod. Aenean lacinia bibendum nulla sed consectetur. Donec id elit non mi porta gravida at eget metus. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Aenean lacinia bibendum nulla sed consectetur. Donec sed
              odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Maecenas faucibus mollis interdum.</p>
            <a href="#" class="btn btn-primary">Go somewhere</a>
          </div>
          <div class="card-footer text-muted">
            2 days ago
          </div>
        </div>
      </div>
    </div>
  </div>
</div>