html - 将小跨度元素置于标题跨度下方

Question

我有以下代码的布局，其中每个列表项都有一个标题“Item 0”，下面有一个带有文本“Description Item 0”的小标签，然后是右侧的两个选择菜单。我想要原样的布局，唯一的问题是我想要标题“元素 0”下方的小标签“描述元素 0”，但它不起作用。用<br>不起作用，因为 title 和 small 是不同的 span 元素。你知道如何将小标签放在标题“Item 0”下方并保持元素的垂直对齐吗？

示例:https://jsfiddle.net/uxvh0gmj/1/

HTML:

<div class="container py-5">
  <div class="row no-gutters">
    <div class="col-12 col-lg-8">
      <div class="card">
        <div class="card-header">
          <h5 class="text-heading-blue mb-0 font-weight-semi-bold">Title</h5>
        </div>
        <div class="card-body">
          <ul class="list-group">
            <li class="list-group-item d-flex justify-content-between align-items-center">
              <span class="title">Item 0</span>
              <br>
              <span><small>Description Item 0</small></span>
              <form>
                <select class="custom-select form-control" style="width:100px;">
                  <option selected="">0</option>
                  <option>1</option>
                  <option>2</option>
                </select>
              </form>
              <form>
                <select class="custom-select form-control" style="width:100px;">                  <option selected="">0</option>
                  <option>1</option>
                  <option>2</option>
                </select>
              </form>
            </li>

          </ul>
        </div>
        <div class="card-footer">
          <button type="button" class="float-right btn">Next</button>
        </div>
      </div>
    </div>

CSS:

.title{
  color:gray;
  font-weight:bold;
}

Answer 1

只需将它们包装在相同的 div 中并保留 br 以创建换行符:

.title {
  color: gray;
  font-weight: bold;
}

<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css">
<div class="container py-5">
  <div class="row no-gutters">
    <div class="col-12 col-lg-8">
      <div class="card">
        <div class="card-header">
          <h5 class="text-heading-blue mb-0 font-weight-semi-bold">Title</h5>
        </div>
        <div class="card-body">
          <ul class="list-group">
            <li class="list-group-item d-flex justify-content-between align-items-center">
              <div>
                <span class="title">Item 0</span>
                <br>
                <small>Description Item 0</small>
              </div>
              <form>
                <select class="custom-select form-control" style="width:100px;">
                  <option selected="">0</option>
                  <option>1</option>
                  <option>2</option>
                </select>
              </form>
              <form>
                <select class="custom-select form-control" style="width:100px;">                  <option selected="">0</option>
                  <option>1</option>
                  <option>2</option>
                </select>
              </form>
            </li>

          </ul>
        </div>
        <div class="card-footer">
          <button type="button" class="float-right btn">Next</button>
        </div>
      </div>
    </div>