使用flexbox时，引导文本不会截断

Question

我正在使用flexbox在Bootstrap卡上工作，无法截断文本。卡中的文本将按预期方式自动换行，但是，如果没有足够的空间，卡标题不会被截断，而是将内容压入卡外（see screenshot）。

谁能解释为什么会这样？

<div class="container-fluid">
  <div class="row">
    <div class="col">
      <div class="card d-flex flex-row">
        <a href="#">[Image]</a>
        <div class="card-body d-flex align-items-center">
          <div class="flex-grow-1">
            <a href="#"><h5 class="card-title text-truncate">Lorem ipsum dolor sit amet, consetetur sadipscing elitr</h5></a>
            <div class="card-text">Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam</div>
          </div>
          <small class="align-self-baseline text-nowrap">Lorem ipsum</small>
          <div>[Icon]</div>
        </div>
      </div>
    </div>
  </div>
</div>

See example on jsfiddle

Answer 1

添加弹性体：

<div class="container-fluid">
  <div class="row">
    <div class="col">
      <div class="card d-flex flex-row">
        <a href="#">[Image]</a>
        <div class="card-body d-flex align-items-center">
          <div class="flex-grow-1">
           <div class="flex-body">
             <a href="#"><h5 class="card-title text-truncate">Lorem ipsum dolor sit amet, consetetur sadipscing elitr</h5></a>
             <div class="card-text">Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam</div>
          </div>
          <small class="align-self-baseline text-nowrap">Lorem ipsum</small>
          <div>[Icon]</div>
        </div>
       </div>
      </div>
    </div>
  </div>
</div>