弹性物品的等高儿童

Question

我在创建flexbox响应网格时遇到问题，并希望有人能指出我正确的方向。

我希望所有.block div的高度相等，而.bottom div绝对位于底部。这实际上是在当前的解决方案中工作，但 当h2标题太长并且达到2行时，我希望行的所有h2标题都是相同的高度

这有可能吗？

我制作了一个Codepen来说明问题： http://codepen.io/kenvdbroek/pen/eZKdEQ

＆＃13;

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h1,
h2,
h3 {
  margin: 0;
}
body {
  margin: 0;
  padding: 0;
}
ul.clean-list {
  margin: 0;
  padding: 0;
}
ul.clean-list li {
  list-style: none;
  margin-bottom: 5px;
}
li:last-child {
  margin-bottom: 0;
}
.container {
  padding-top: 50px;
}
.block {
  margin-bottom: 30px;
  border: 1px solid red;
}
.block > .bottom {
  border: 1px solid blue;
}
@media only screen and (min-width: 480px) {
  .row.row-flex-wrapper::before,
  .row.row-flex-wrapper::after {
    content: none !important;
  }
  .row.row-flex-wrapper::after {
    clear: none;
  }
  .row.row-flex-wrapper {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
  }
  .row.row-flex-wrapper .column {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    float: none;
    border: 1px solid orange;
  }
  .row.row-flex-wrapper .column > .block {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    flex-direction: column;
    -ms-flex-direction: column;
    -webkit-flex-direction: column;
  }
  .row.row-flex-wrapper .column > .block > .block-list {
    flex: 1 0 auto;
    -ms-flex: 1 0 auto;
    -webkit-flex: 1 0 auto;
  }
  .row.row-flex-wrapper .column > .block > h2 {}
}
@media only screen and (min-width: 480px) and (max-width: 767px) {
  .container .row .column {
    width: 50%;
  }
}

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<div class="container">
  <div class="row row-flex-wrapper">
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Title 1</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
            It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently
            with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Some link</a>
            </li>
            <li><a href="/button">Some link 2</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Another very long title which is actually toooo long...</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer...</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/another-button">Another button</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Title</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer, Lorem Ipsum has been the industry's standard dummy text...</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Very nice link</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>This block is cool!</h2>
        <div class="block-list">
          <p>Some text here. Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer, Lorem Ipsum has been the industry's standard dummy
            text...</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Another link</a>
            </li>
            <li><a href="/button">Check this item</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Title Block</h2>
        <div class="block-list">
          <p>Go check out this item... Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer, Lorem Ipsum has been the industry's standard
            dummy text...</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Button</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Buttonssssss</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
            It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently
            with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="#button">Button</a>
            </li>
          </ul>
        </div>
      </div>
    </div>

    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Title</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Link to item</a>
            </li>
            <li><a href="/button">Link to item</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Title</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
            It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently
            with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Link to item</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="column col-sm-6 col-md-4">
      <div class="block">
        <h2>Another very very very very very very very long title</h2>
        <div class="block-list">
          <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
            It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently
            with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</p>
        </div>
        <div class="bottom">
          <ul class="clean-list">
            <li><a href="/button">Button to item</a>
            </li>
          </ul>
        </div>
      </div>
    </div>
  </div>
</div>

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Answer 1

一般情况下，这不适用于flexbox或CSS。

Flex容器的初始设置为align-items: stretch。这会导致弹性项目扩展cross axis的全长。这就是所谓的＆＃34; flex equal height columns＆＃34; 。

以下是一些要记住的注意事项：

• 等高列仅适用于Flex容器的 children 。换句话说，flex项必须具有相同的父项。否则，等高特征不适用。

  你的问题：

    

  我希望行的所有h2标题都是相同的高度。这有可能吗？

  不使用CSS。因为h2存在于不同的容器中，所以他们不是兄弟姐妹（他们更像堂兄弟），所以平等的高度不适用。

  < / LI>

• flexbox中的等高列仅适用于一条柔性线。通过包装创建的其他线上的项目建立自己的相等高度线。这意味着equal height columns do not work in a multi-line flex container。

• align-self属性可用于各个弹性项目以覆盖align-items，这可能会破坏相等的高度特征。

• 通过在弹性项目上指定高度（例如height: 300px），将覆盖该项目的align-items和align-self，并忽略相等的高度设置。< / p>

• 这篇文章重点介绍一个flex-direction: row的容器。如果容器为flex-direction: column，则等高将变为等宽。这是一份详细的评论：Make flex items take content width, not width of parent container

相关：

• Equal height rows in a flex container
• How to disable equal height columns in Flexbox?

Answer 2

我根据您的示例制定了jQuery解决方案。

将“ eh”类（等高）添加到要为其对齐某些（子）子元素的每个父元素，以及一个包含子元素选择器的data-eh元素。

<div class="row eh" data-eh='["h2",".block-list",".bottom"]'>

然后使用此功能：

$('.eh').each(function(){  
  var $this = $(this);
  var equalHeightSelectors = $this.data('eh');  
  $.each(equalHeightSelectors, function( index, value ) { 
    var min_height = 0;
    var $children = $this.find(value);
    $children.each(function(){
      var $el = $(this);
      if($el.height() > min_height){  
        min_height = $el.height();
      }
    });
    $children.height(min_height);
  });
});

https://codepen.io/pwkip/pen/oNvxNYZ