水平对齐多个无序列表 (UL) 列

Question

我有多个无序列表，具有不同数量的元素，并且列标题中包含不同数量的文本。

我正在使用 flexbox 水平对齐它们，但在列相互对齐时遇到了困难。

当前问题： 期望结果：

编辑：需要注意的是，列标题类是可选的，可以删除，因此该项目只是一个普通的列表项。

当列标题被激活时，我需要列标题将列标题 li 的高度与最多的文本相匹配。我让 flexbox 水平对齐列表，但列没有对齐。

这是 JsFiddle：(https://jsfiddle.net/xk04m7g1/)

.column-stack {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding: 30px
}

.column-stack ul {
  -ms-flex: none;
  flex: none;
  width: calc(33.333% - 10px);
}

.column-stack ul .column-header {
  font-size: 12px;
  text-transform: uppercase;
  color: #006a4d;
  font-weight: 500;
  padding-bottom: 5px;
  border-bottom: 1px solid #3a3a3a;
  display: flex;
  align-items: stretch;
  /* Default */
  justify-content: space-between;
}

<div class="column-stack">
  <ul>
    <li class="column-header">Header 1 One Line</li>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
  </ul>
  <ul>
    <li class="column-header">Header 2 Many Lines of Text this is many lines of text and is the longest column wow it keeps going and going and going like the energizer rabbit</li>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
  </ul>
  <ul>
    <li class="column-header">Header 3 Two Line at most on most use cases</li>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
  </ul>
</div>

无论该列中有多少文本，我都希望看到无序列表列标题居中并水平排列。救命！

Answer 1

考虑多种选择，例如表格、网格等...，但如果您想继续使用 flex 但又不想被限制为固定数量的列，这可能会很好。

如果您可以重新排列您的 HTML，以便标题位于具有 display flex 的单独容器中，并且列表也在具有 display flex 的容器中，这将确保所有标题的高度相同，例如：

.column-stack {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-pack: justify;
        justify-content: space-between;
    }

    .column-stack ul {
        flex-grow: 1;
        flex-basis: 1px;
    }

.headers {
    display:flex;
  
}
 .column-header {
        font-size: 12px;
        text-transform: uppercase;
        color: #006a4d;
        font-weight: 500;
        padding-bottom: 5px;
        border-bottom: 1px solid #3a3a3a;
        display: flex;
        align-items: stretch; /* Default */
        justify-content: space-between;
        flex-grow: 1;
        flex-basis: 1px;
        margin: 10px;
 }
 

<div class="headers">
  <div class="column-header">Header 1 One Line</div>
  <div class="column-header">Header 2 Many Lines of Text this is many lines of text and is the longest column wow it keeps going and going and going like the energizer rabbit</div>
  <div class="column-header">Header 3 Two Line at most on most use cases</div>
</div>

<div class="column-stack">
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
</ul>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
</ul>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
</ul>
</div>

记得加上flex-grow: 1;和flex-basis: 1px;这样宽度也一样

Answer 2

如果您可以调整标记，我会将column-header 移出列表。这样你就可以在同一个父 flexbox 中伸缩 header 和列表。

注意：从语义上讲，列表的标题本身就是列表中的列表项并没有多大意义。

.column-stack {
  display: flex;
  justify-content: space-between;
}

.column {
  padding: 10px;
  flex: 1 1 33%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.column-stack .column-header {
  font-size: 12px;
  text-transform: uppercase;
  color: #006a4d;
  font-weight: 500;
  padding-bottom: 5px;
  border-bottom: 1px solid #3a3a3a;
  flex: 1;
  display: flex;
  justify-content: center;
  flex-direction: column;
  
}

<div class="column-stack">
  <div class="column">
    <h5 class="column-header">Header 1 One Line</h5>
    <ul class="column-list">
      <li>Item 1</li>
      <li>Item 2</li>
      <li>Item 3</li>
      <li>Item 4</li>
    </ul>
  </div>

  <div class="column">
    <h5 class="column-header">Header 2 Many Lines of Text this is many lines of text and is the longest column wow it keeps going and going and going like the energizer rabbit</h5>
    <ul class="column-list">
      <li>Item 1</li>
      <li>Item 2</li>
      <li>Item 3</li>
      <li>Item 4</li>
    </ul>
  </div>

  <div class="column">
    <h5 class="column-header">Header 3 Two Line at most on most use cases</h5>
    <ul class="column-list">
      <li>Item 1</li>
      <li>Item 2</li>
      <li>Item 3</li>
      <li>Item 4</li>
    </ul>
  </div>

</div>

编辑

看起来您实际上可能正在寻找的是不起眼的 HTML 表格。

th {
  font-size: 12px;
  text-transform: uppercase;
  color: #006a4d;
  font-weight: 500;
  padding-bottom: 5px;
  border-bottom: 1px solid #3a3a3a;
}

td {
  width: 33%;
}

<table>
  <thead>
    <th>Header 1 One line</th>
    <th>Header 2 Many Lines of Text this is many lines of text and is the longest column wow it keeps going and going and going like the energizer rabbit</th>
    <th>Header 3 Two Line at most on most use cases</th>
  </thead>
  <tbody>
    <tr>
      <td>Item 1</td>
      <td>Item 1</td>
      <td>Item 1</td>
    </tr>
    <tr>
      <td>Item 2</td>
      <td>Item 2</td>
      <td>Item 2</td>
    </tr>
    <tr>
      <td>Item 3</td>
      <td>Item 3</td>
      <td>Item 3</td>
    </tr>
    <tr>
      <td>Item 4</td>
      <td>Item 4</td>
      <td>Item 4</td>
    </tr>
  </tbody>
</table>

Answer 3

只需将高度添加到您的.column-header

.column-stack ul .column-header {
height:80px;
}

这将正确对齐

https://jsfiddle.net/ot6qsu4w/20/

Answer 4

您可以使用这样的函数来找到最高的标题元素并将其余部分设置为该大小。

window.onload = resizeHeaders;

function resizeHeaders()
{
  var headers = document.getElementsByClassName("column-header");
  
  var maxHeight = 0;
  for(var i = 0; i < headers.length; i++)
  {
    if(maxHeight < headers[i].offsetHeight)
      maxHeight = headers[i].offsetHeight;
  }
  
  for(var i = 0; i < headers.length; i++)
  {
    headers[i].style.height = maxHeight+"px";
  }
}

.column-stack {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding: 30px
}

.column-stack ul {
  -ms-flex: none;
  flex: none;
  width: calc(33.333% - 10px);
}

.column-stack ul .column-header {
  font-size: 12px;
  text-transform: uppercase;
  color: #006a4d;
  font-weight: 500;
  padding-bottom: 5px;
  border-bottom: 1px solid #3a3a3a;
  display: flex;
  align-items: stretch;
  /* Default */
  justify-content: space-between;
}

<div class="column-stack">
  <ul>
    <li class="column-header">Header 1 One Line</li>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
  </ul>
  <ul>
    <li class="column-header">Header 2 Many Lines of Text this is many lines of text and is the longest column wow it keeps going and going and going like the energizer rabbit</li>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
  </ul>
  <ul>
    <li class="column-header">Header 3 Two Line at most on most use cases</li>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
  </ul>
</div>