Bootstrap5 卡片（Cards）
Bootstrap卡片提供了一个灵活和可扩展的内容容器，具有多种变体和选项。
关于Card
卡片是一个灵活的、可扩展的内容容器，它包括headers和footers的选项、各种内容、上下文背景颜色和强大的显示选项。如果你熟悉Bootstrap 3，那么card将取代我们旧的面板、和缩略图。与这些组件类似的功能都可以使用card实现。
示例
卡片是以尽可能少的标记和样式构建的，但仍然能够提供大量的控制和自定义。使用flexbox构建，它们提供了简单的对齐方式，并能与其他Bootstrap组件很好地混合。它们默认没有边距（margin），因此可以根据需要使用间距工具。
下面是一个基本卡片的例子，内容混合，宽度固定。卡片没有固定的宽度，所以它们会自然地填满其父元素的全部宽度。这可以通过我们的各种尺寸选项轻松的设定。
<div class="card" style="width: 18rem;">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
<a href="#" class="btn btn-primary">Go somewhere</a>
</div>
</div>
内容类型
卡片支持多种内容，包括图片、文字、列表组、链接等。以下是支持的例子。
Body
卡片的构件是.card-body。每当你需要在卡片中添加一个填充部分时，都可以使用它。
<div class="card">
<div class="card-body">
This is some text within a card body.
</div>
</div>
Titles, text, 和 links
通过在<h*>标签上添加.card-title来使用卡片标题。同样，通过在<a>标签上添加.card-link来添加和放置链接。
通过在<h*>标签中添加.card-subtitle来使用副标题。如果将.card-title和.card-subtitle项放在.card-body项中，那么卡片标题和副标题就会很好地对齐。
<div class="card" style="width: 18rem;">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<h6 class="card-subtitle mb-2 text-muted">Card subtitle</h6>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
<a href="#" class="card-link">Card link</a>
<a href="#" class="card-link">Another link</a>
</div>
</div>
Images
.card-img-top将图片放在卡片的顶部。使用.card-text，可以在卡片上添加文字。.card-text中的文字也可以用标准的HTML标签来进行样式设计。
<div class="card" style="width: 18rem;">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
列表组
在卡片中创建内容列表。
<div class="card" style="width: 18rem;">
<ul class="list-group list-group-flush">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
</div>
<div class="card" style="width: 18rem;">
<div class="card-header">
Featured
</div>
<ul class="list-group list-group-flush">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
</div>
<div class="card" style="width: 18rem;">
<ul class="list-group list-group-flush">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
<div class="card-footer">
Card footer
</div>
</div>
Kitchen sink
混合和匹配多种内容类型来创建你所需要的卡片，或者把所有的内容都扔在那里。下面展示的是图片样式、块、文本样式和列表组 -- 所有这些都被包裹在一个固定宽度的卡片中。
<div class="card" style="width: 18rem;">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
<ul class="list-group list-group-flush">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
<div class="card-body">
<a href="#" class="card-link">Card link</a>
<a href="#" class="card-link">Another link</a>
</div>
</div>
Header 和 footer
在卡片中添加header 或 footer.
<div class="card">
<div class="card-header">
Featured
</div>
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
卡片header可以通过添加.card-header到<h*>元素中。
<div class="card">
<h5 class="card-header">Featured</h5>
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
<div class="card">
<div class="card-header">
Quote
</div>
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
<footer class="blockquote-footer">Someone famous in <cite title="Source Title">Source Title</cite></footer>
</blockquote>
</div>
</div>
<div class="card text-center">
<div class="card-header">
Featured
</div>
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
Sizing
卡片在开始时没有特定的宽度（width），所以除非另有说明，否则宽度是100%。你可以根据需要通过自定义CSS、网格类、网格Sass mixins或实用工具来改变这个宽度。
使用网格标记
使用网格，根据需要将卡包装在列和行中。
<div class="row">
<div class="col-sm-6">
<div class="card">
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
</div>
<div class="col-sm-6">
<div class="card">
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
</div>
</div>
使用实用程序
使用我们的一些可用的尺寸工具来快速设置卡片的宽度。
<div class="card w-75">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
<a href="#" class="btn btn-primary">Button</a>
</div>
</div>
<div class="card w-50">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">With supporting text below as a natural lead-in to additional content.</p>
<a href="#" class="btn btn-primary">Button</a>
</div>
</div>
自定义CSS
在你的样式表中使用自定义CSS或作为内联样式来设置宽度。
<div class="card" style="width: 18rem;">
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
文本对齐
您可以使用我们的文本对齐类快速更改任何卡片文本的对齐方式 -- 整体或特定部分。
<div class="card" style="width: 18rem;">
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
<div class="card text-center" style="width: 18rem;">
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
<div class="card text-end" style="width: 18rem;">
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
导航
使用Bootstrap的导航组件为卡片的头部（或块）添加一些导航。
<div class="card text-center">
<div class="card-header">
<ul class="nav nav-tabs card-header-tabs">
<li class="nav-item">
<a class="nav-link active" aria-current="true" href="#">Active</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
</div>
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
<div class="card text-center">
<div class="card-header">
<ul class="nav nav-pills card-header-pills">
<li class="nav-item">
<a class="nav-link active" href="#">Active</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
</div>
<div class="card-body">
<h5 class="card-title">Special title treatment</h5>
<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>
图片
卡片包括一些处理图片的选项。可以选择在卡片的两端附加 "image caps"，将图片与卡片内容叠加，或简单地将图片嵌入卡片中。
Image caps
与headers和footers类似，卡片可以包括headers和footers的"image cap"。
<div class="card mb-3">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
</div>
</div>
<div class="card">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
</div>
<img src="..." class="card-img-bottom" alt="...">
</div>
图片覆盖
将图片变为为卡片背景，并叠加卡片的文字。根据图片的不同，您可能需要或不需要额外的样式或实用程序。
<div class="card bg-dark text-white">
<img src="..." class="card-img" alt="...">
<div class="card-img-overlay">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<p class="card-text">Last updated 3 mins ago</p>
</div>
</div>
注意，内容不能大于图像的高度。如果内容大于图像，内容将显示在图像之外。
水平图片
使用网格和实用类的组合，可以以移动友好和响应的方式使卡片水平。在下面的例子中，我们用.g-0去掉网格槽，并使用.col-md-*类使卡片在md断点处水平。根据你的卡片内容，可能需要进一步调整。
<div class="card mb-3" style="max-width: 540px;">
<div class="row g-0">
<div class="col-md-4">
<img src="..." alt="...">
</div>
<div class="col-md-8">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
</div>
</div>
</div>
</div>
卡片风格
卡片包括各种自定义背景、边框和颜色的选项。
背景和颜色
使用文字和背景工具来改变卡片的外观。
<div class="card text-white bg-primary mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Primary card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card text-white bg-secondary mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Secondary card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card text-white bg-success mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Success card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card text-white bg-danger mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Danger card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card bg-warning mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Warning card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card text-body bg-info mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Info card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card bg-light mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Light card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card text-white bg-dark mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Dark card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
Border
使用border工具来改变一张卡片的边框颜色。注意，你可以把.text-{color}类放在父.card或卡片的子集上，如下所示。
<div class="card border-primary mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body text-primary">
<h5 class="card-title">Primary card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-secondary mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body text-secondary">
<h5 class="card-title">Secondary card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-success mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body text-success">
<h5 class="card-title">Success card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-danger mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body text-danger">
<h5 class="card-title">Danger card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-warning mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Warning card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-info mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Info card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-light mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body">
<h5 class="card-title">Light card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
<div class="card border-dark mb-3" style="max-width: 18rem;">
<div class="card-header">Header</div>
<div class="card-body text-dark">
<h5 class="card-title">Dark card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
</div>
Mixins utilities
你也可以根据需要改变卡片头和卡片的尾部的边框，甚至可以用.bg-transparent去除它们的背景色。
<div class="card border-success mb-3" style="max-width: 18rem;">
<div class="card-header bg-transparent border-success">Header</div>
<div class="card-body text-success">
<h5 class="card-title">Success card title</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
</div>
<div class="card-footer bg-transparent border-success">Footer</div>
</div>
卡片布局
除了对卡片中的内容进行样式设计外，Bootstrap还包括一些布局系列卡片的选项。目前，这些布局选项还不是响应式的。
卡片组
使用卡片组将卡片呈现为一个单一的、具有相同宽度和高度列的附加元素。卡片组开始时是堆叠的，并使用display: flex;从sm断点开始以统一的尺寸连接。
<div class="card-group">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
</div>
</div>
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
</div>
</div>
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
<p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
</div>
</div>
</div>
当使用带footers的卡片组时，它们的内容会自动对齐。
<div class="card-group">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
<div class="card-footer">
<small class="text-muted">Last updated 3 mins ago</small>
</div>
</div>
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
</div>
<div class="card-footer">
<small class="text-muted">Last updated 3 mins ago</small>
</div>
</div>
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
</div>
<div class="card-footer">
<small class="text-muted">Last updated 3 mins ago</small>
</div>
</div>
</div>
网格卡片
使用Bootstrap网格系统和.row-col类来控制每行显示多少个网格列（包裹着你的卡片）。例如，这里的.row-cols-1在一列上放置卡片，.row-cols-md-2将四张卡片分割成等宽的多行，从中间断点向上。
<div class="row row-cols-1 row-cols-md-2 g-4">
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content.</p>
</div>
</div>
</div>
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
</div>
改成.row-cols-3就可以看到第四张卡片包了。
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content.</p>
</div>
</div>
</div>
<div class="col">
<div class="card">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
</div>
当你需要等高的时候，在卡片上添加.h-100。如果你想在默认情况下实现等高，你可以在Sass中设置$card-height: 100%。
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a short card.</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content.</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
</div>
就像卡片组一样，卡片的footers会自动排列。
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
</div>
<div class="card-footer">
<small class="text-muted">Last updated 3 mins ago</small>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
</div>
<div class="card-footer">
<small class="text-muted">Last updated 3 mins ago</small>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
</div>
<div class="card-footer">
<small class="text-muted">Last updated 3 mins ago</small>
</div>
</div>
</div>
</div>
Masonry
在v4中，我们使用了一种纯CSS技术来模仿类似Masonry的列的行为，但是这种技术带来了很多不愉快的副作用。如果你想在v5中拥有这种类型的布局，你可以直接使用Masonry插件。Masonry并不包含在Bootstrap中，但我们已经做了一个演示示例来帮助你开始使用。
