Bootstrap 4 个卡片组，列数基于视口

Question

我正在尝试在 bootstrap 4 中实现卡片组功能，以使我所有的卡片高度相同。

bootstrap 提供的示例显示了 4 张漂亮的卡片，但无论视口如何，它都是一行 4 张卡片。查看代码here.

这对我来说没有意义，因为我假设您希望将卡片缩小到最小尺寸以使您的内容看起来仍然不错。

然后我尝试添加一些视口类以打破屏幕尺寸，但是一旦添加 div，卡片组就不再适用，因此无法制作卡片等高。

我怎样才能做到这一点？这是一个缺失的功能，将在 Bootstrap 4 的完整版本中解决吗？

这是 fiddle：https://jsfiddle.net/crrm5q9m/

<div class="card-deck-wrapper">
  <div class="card-deck">
    <div class="card card-inverse card-success text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>It's really good news that the new Bootstrap 4 now has support for CSS 3 flexbox.</p>
          <footer>Makes flexible layouts <cite title="Source Title">Faster</cite></footer>
        </blockquote>
      </div>
    </div>
    <div class="card card-inverse card-danger text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>The Bootstrap 3.x element that was called "Panel" before, is now called a "Card".</p>
          <footer>All of this makes more <cite title="Source Title">Sense</cite></footer>
        </blockquote>
      </div>
    </div>
    <div class="card card-inverse card-warning text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>There are also some interesting new text classes for uppercase and capitalize.</p>
          <footer>These handy utilities make it <cite title="Source Title">Easy</cite></footer>
        </blockquote>
      </div>
    </div>
    <div class="card card-inverse card-info text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>If you want to use cool icons in Bootstrap 4, you'll have to find your own such as Font Awesome or Ionicons.</p>
          <footer>The Glyphicons are not <cite title="Source Title">Included</cite></footer>
        </blockquote>
      </div>
    </div>
        <div class="card card-inverse card-success text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>It's really good news that the new Bootstrap 4 now has support for CSS 3 flexbox.</p>
          <footer>Makes flexible layouts <cite title="Source Title">Faster</cite></footer>
        </blockquote>
      </div>
    </div>
    <div class="card card-inverse card-danger text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>The Bootstrap 3.x element that was called "Panel" before, is now called a "Card".</p>
          <footer>All of this makes more <cite title="Source Title">Sense</cite></footer>
        </blockquote>
      </div>
    </div>
    <div class="card card-inverse card-warning text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>There are also some interesting new text classes for uppercase and capitalize.</p>
          <footer>These handy utilities make it <cite title="Source Title">Easy</cite></footer>
        </blockquote>
      </div>
    </div>
    <div class="card card-inverse card-info text-center col-xs-6 col-sm-4 col-md-3 col-lg-2 col-xl-1">
      <div class="card-block">
        <blockquote class="card-blockquote">
          <p>If you want to use cool icons in Bootstrap 4, you'll have to find your own such as Font Awesome or Ionicons.</p>
          <footer>The Glyphicons are not <cite title="Source Title">Included</cite></footer>
        </blockquote>
      </div>
    </div>
  </div>
</div>

Answer 1

2018 年更新

如果您想要 responsive card-deck，请使用可见性实用程序在不同的视口宽度（断点）上强制换行每 X 列...

Bootstrap 4 responsive card-deck (v 4.1)

Bootstrap 4 alpha 2 的原始答案：

您可以使用网格 col-*-* 获得不同的宽度（而不是卡片组），然后使用 flexbox 为列设置相同的高度。

.row > div[class*='col-'] {
  display: flex;
  flex:1 0 auto;
}

http://codeply.com/go/O0KdSG2YX2（字母 2）

问题是 w/o flexbox 启用了 card-deck 使用 table-cell 的地方变得很难控制宽度。从 Bootstrap 4 Alpha 6 开始，flexbox 是默认的，因此 flexbox 不需要额外的 CSS，h-100 class 可以用来制作卡片全高：http://www.codeply.com/go/gnOzxd4Spk

相关问题：

Answer 2

这里有一个 Sass 的解决方案，可以根据断点配置每行的卡片数量：https://codepen.io/migli/pen/OQVRMw

它适用于 Bootstrap 4 beta 3

// Bootstrap 4 breakpoints & gutter
$grid-breakpoints: (
    xs: 0,
    sm: 576px,
    md: 768px,
    lg: 992px,
    xl: 1200px
) !default;

$grid-gutter-width: 30px !default;

// number of cards per line for each breakpoint
$cards-per-line: (
    xs: 1,
    sm: 2,
    md: 3,
    lg: 4,
    xl: 5
);

@each $name, $breakpoint in $grid-breakpoints {
    @media (min-width: $breakpoint) {
        .card-deck .card {
            flex: 0 0 calc(#{100/map-get($cards-per-line, $name)}% - #{$grid-gutter-width});
        }
    }
}

编辑 (2019/10)

我研究了另一个解决方案，它使用 水平列表组 + 灵活实用程序 而不是卡片组：

https://codepen.io/migli/pen/gOOmYLb

这是一种将任何类型的元素组织到响应式网格中的简单解决方案

<div class="container">
    <ul class="list-group list-group-horizontal align-items-stretch flex-wrap">
        <li class="list-group-item">Cras justo odio</li>
        <li class="list-group-item">Dapibus ac facilisis in</li>
        <li class="list-group-item">Morbi leo risus</li>
        <li class="list-group-item">Cras justo odio</li>
        <li class="list-group-item">Dapibus ac facilisis in</li>
        <!--= add as many items as you need  =-->
    </ul>
</div>

.list-group-item {
    width: 95%;
    margin: 1% !important;
}

@media (min-width: 576px) {
    .list-group-item {
        width: 47%;
        margin: 5px 1.5% !important;
    }
}

@media (min-width: 768px) {
    .list-group-item {
        width: 31.333%;
        margin: 5px 1% !important;
    }
}

@media (min-width: 992px) {
    .list-group-item {
        width: 23%;
        margin: 5px 1% !important;
    }
}

@media (min-width: 1200px) {
    .list-group-item {
        width: 19%;
        margin: 5px .5% !important;
    }
}

Answer 3

我花了点时间才弄明白，但答案是不使用 card-deck，而是使用 .row 和 .col。

这会生成一组针对每种屏幕尺寸的响应式卡片：3 张卡片用于 xl，2 张卡片用于 lg 和 md，1 张卡片用于 sm和 xs。 .my-3 在顶部和底部添加填充，使它们看起来不错。

mixin postList(stuff)
  .row
    - site.posts.each(function(post, index){
      .col-sm-12.col-md-6.col-lg-6.col-xl-4
        .card.my-3
          img.card-img-top(src="...",  alt="Card image cap")
          .card-body
            h5.card-title Card title #{index}
            p.card-text Some quick example text to build on the card title and make up the bulk of the cards content.
            a.btn.btn-primary(href="#") Go somewhere
    - })

Answer 4

有更简单的解决方案 - 设置卡片元素的固定高度 - header 和 body。这样，我们就可以使用标准的 boostrap 列网格设置响应式布局。

这是我的例子： http://codeply.com/go/RHDawRSBol

 <div class="card-deck text-center">
    <div class="col-sm-6 col-md-4 col-lg-3">
        <div class="card mb-4">
            <img class="card-img-top img-fluid" src="//placehold.it/500x280" alt="Card image cap">
            <div class="card-body" style="height: 20rem">
                <h4 class="card-title">1 Card title</h4>
                <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>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>

Answer 5

<div class="w-100 d-lg-none mt-4"></div>

我创建了 4 张卡片并将此代码放在第二张和第三张卡片之间，试试这个。

Answer 6

此答案适用于使用 Bootstrap 4.1+ 以及关心 IE 11 的人

Card-deck 不会根据视口大小适配卡片的可见数量。

以上方法有效，但不支持IE。使用以下方法，您可以实现类似的功能和响应式卡片。

不同断点可以管理到show/hide的卡片数量

在 Bootstrap 中，4.1+ 的列默认高度相同，只需确保您的 card/content 使用所有可用的 space。运行片段，你就会明白

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="container">
    <div class="row">
        <div class="col-sm-6 col-lg-4 mb-3">
            <div class="card mb-3 h-100">

                <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 class="col-sm-6 col-lg-4 mb-3">
            <div class="card mb-3 h-100">
                <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 class="col-sm-6 col-lg-4 mb-3">
            <div class="card mb-3 h-100">
                <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>
</div>

Answer 7

我通过在卡片上添加 min-width 来实现它：

<div class="card mb-3" style="min-width: 18rem;">
  <p>Card content</p>
</div>

卡片不会低于此宽度，但仍会正确填充每一行并具有相同的高度。

Answer 8

我已经使用 CSS 网格来解决这个问题。 CSS Grid 将使所有元素在同一行，高度相同。

虽然我没有研究过让所有行中的所有元素都具有相同的高度。

无论如何，这是可以做到的：

HTML:

<div class="grid-container">

  <div class="card">...</div>
  <div class="card">...</div>
</div>

CSS:

.grid-container {
  display: grid;  
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

这是一个完整的 JSFiddle。 https://jsfiddle.net/bluegrounds/owjvhstq/4/

Answer 9

根据视口按最小宽度定义列：


    /* Number of Cards by Row based on Viewport */
    @media (min-width: 576px) {
        .card-deck .card {
            min-width: 50.1%; /* 1 Column */
            margin-bottom: 12px;
        }
    }

    @media (min-width: 768px) {
        .card-deck .card {
            min-width: 33.4%;  /* 2 Columns */
        }
    }

    @media (min-width: 992px) {
        .card-deck .card {
            min-width: 25.1%;  /* 3 Columns */
        }
    }

    @media (min-width: 1200px) {
        .card-deck .card {
            min-width: 20.1%;  /* 4 Columns */
        }
    }

Answer 10

@Zim 在上面提供了一个很好的解决方案（当之无愧的我的赞成票），但是，它不太符合我的需要，因为我在 Jekyll 中实现了它并且希望我的卡片组每次都自动更新我在我的网站上添加了 post。在 Jekyll 中，随着每个新的 post 增加这样的卡片组是直截了当的，挑战在于正确放置断点。我的解决方案使用了额外的液体标签和模数数学。

虽然这个问题很老，但我偶然发现它并发现它很有用，也许有一天有人会想用 Jekyll 来做这个。

<div class = "container">
  <div class = "card-deck">

    {% for post in site.posts %}
      <div class = "card border-0 mt-2">
        <a href = "{{ post.url }}"><img src = "{{ site.baseurl }}{{ post.image }}" class = "mx-auto" alt = "..."></a>
        <div class = "card-body">
          <h5 class = "card-title"><a href = "{{ post.url }}">{{ post.title }}</a></h5>
          <span>Published: {{ post.date | date_to_long_string }} </span>
          <p class = "text-muted">{{ post.excerpt }}</p>
        </div>
        <div class = "card-footer bg-white border-0"><a href = "{{ post.url }}" class = "btn btn-primary">Read more</a></div>
      </div>

      <!-- Use modulo to add divs to handle break points -->
      {% assign sm = forloop.index | modulo: 2 %}
      {% assign md = forloop.index | modulo: 3 %}
      {% assign lg = forloop.index | modulo: 4 %}
      {% assign xl = forloop.index | modulo: 5 %}

      {% if sm == 0 %}
        <div class="w-100 d-none d-sm-block d-md-none"><!-- wrap every 2 on sm--></div>
      {% endif %}

      {% if md == 0 %}
        <div class="w-100 d-none d-md-block d-lg-none"><!-- wrap every 3 on md--></div>
      {% endif %}

      {% if lg == 0 %}
        <div class="w-100 d-none d-lg-block d-xl-none"><!-- wrap every 4 on lg--></div>
      {% endif %}

      {% if xl == 0 %}
        <div class="w-100 d-none d-xl-block"><!-- wrap every 5 on xl--></div>
      {% endif %}

    {% endfor %}
  </div>
</div>

整个代码块可以直接在网站中使用或保存在您的 Jekyll 项目 _includes 文件夹中。

Answer 11

使用 Bootstrap 4.4.1，我可以使用简单的类通过添加一些 scss 来设置每副牌的卡片数量。

HTML

<div class="card-deck deck-1 deck-md-2 deck-lg-3">
   <div class="card">
      <h2 class="card-header">Card 1</h3>
      <div class="card-body">
          Card body
      </div>
      <div class="card-footer">
          Card footer
      </div>
   </div>
   <div class="card">
      <h2 class="card-header">Card 2</h3>
      <div class="card-body">
          Card body
      </div>
      <div class="card-footer">
          Card footer
      </div>
   </div>
   <div class="card">
      <h2 class="card-header">Card 3</h3>
      <div class="card-body">
          Card body
      </div>
      <div class="card-footer">
          Card footer
      </div>
   </div>
</div>

SCSS

// _card_deck_columns.scss
// add deck-X and deck-BP-X classes to select the number of cards per line
@for $i from 1 through $grid-columns {
  .deck-#{$i} > .card {
    $percentage: percentage(1 / $i);
    @if $i == 1 {
      $width: $percentage;
      flex-basis: $width;
      max-width: $width;
      margin-left: 0;
      margin-right: 0;
    } @else {
      $width: unquote("calc(#{$percentage} - #{$grid-gutter-width})");
      flex-basis: $width;
      max-width: $width;
    }
  }
}
@each $breakpoint in map-keys($grid-breakpoints) {
  $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
  @include media-breakpoint-up($breakpoint) {
    @for $i from 1 through $grid-columns {
      .deck#{$infix}-#{$i} > .card {
        $percentage: percentage(1 / $i);
        @if $i == 1 {
          $width: $percentage;
          flex-basis: $width;
          max-width: $width;
          margin-left: 0;
          margin-right: 0;
        } @else {
          $width: unquote("calc(#{$percentage} - #{$grid-gutter-width})");
          flex-basis: $width;
          max-width: $width;
          margin-left: $grid-gutter-width / 2;
          margin-right: $grid-gutter-width / 2;
        }
      }
    }
  }
}

CSS

.deck-1 > .card {
  flex-basis: 100%;
  max-width: 100%;
  margin-left: 0;
  margin-right: 0; }

.deck-2 > .card {
  flex-basis: calc(50% - 30px);
  max-width: calc(50% - 30px); }

.deck-3 > .card {
  flex-basis: calc(33.3333333333% - 30px);
  max-width: calc(33.3333333333% - 30px); }

.deck-4 > .card {
  flex-basis: calc(25% - 30px);
  max-width: calc(25% - 30px); }

.deck-5 > .card {
  flex-basis: calc(20% - 30px);
  max-width: calc(20% - 30px); }

.deck-6 > .card {
  flex-basis: calc(16.6666666667% - 30px);
  max-width: calc(16.6666666667% - 30px); }

.deck-7 > .card {
  flex-basis: calc(14.2857142857% - 30px);
  max-width: calc(14.2857142857% - 30px); }

.deck-8 > .card {
  flex-basis: calc(12.5% - 30px);
  max-width: calc(12.5% - 30px); }

.deck-9 > .card {
  flex-basis: calc(11.1111111111% - 30px);
  max-width: calc(11.1111111111% - 30px); }

.deck-10 > .card {
  flex-basis: calc(10% - 30px);
  max-width: calc(10% - 30px); }

.deck-11 > .card {
  flex-basis: calc(9.0909090909% - 30px);
  max-width: calc(9.0909090909% - 30px); }

.deck-12 > .card {
  flex-basis: calc(8.3333333333% - 30px);
  max-width: calc(8.3333333333% - 30px); }

.deck-1 > .card {
  flex-basis: 100%;
  max-width: 100%;
  margin-left: 0;
  margin-right: 0; }

.deck-2 > .card {
  flex-basis: calc(50% - 30px);
  max-width: calc(50% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-3 > .card {
  flex-basis: calc(33.3333333333% - 30px);
  max-width: calc(33.3333333333% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-4 > .card {
  flex-basis: calc(25% - 30px);
  max-width: calc(25% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-5 > .card {
  flex-basis: calc(20% - 30px);
  max-width: calc(20% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-6 > .card {
  flex-basis: calc(16.6666666667% - 30px);
  max-width: calc(16.6666666667% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-7 > .card {
  flex-basis: calc(14.2857142857% - 30px);
  max-width: calc(14.2857142857% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-8 > .card {
  flex-basis: calc(12.5% - 30px);
  max-width: calc(12.5% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-9 > .card {
  flex-basis: calc(11.1111111111% - 30px);
  max-width: calc(11.1111111111% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-10 > .card {
  flex-basis: calc(10% - 30px);
  max-width: calc(10% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-11 > .card {
  flex-basis: calc(9.0909090909% - 30px);
  max-width: calc(9.0909090909% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

.deck-12 > .card {
  flex-basis: calc(8.3333333333% - 30px);
  max-width: calc(8.3333333333% - 30px);
  margin-left: 15px;
  margin-right: 15px; }

@media (min-width: 576px) {
  .deck-sm-1 > .card {
    flex-basis: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0; }

  .deck-sm-2 > .card {
    flex-basis: calc(50% - 30px);
    max-width: calc(50% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-3 > .card {
    flex-basis: calc(33.3333333333% - 30px);
    max-width: calc(33.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-4 > .card {
    flex-basis: calc(25% - 30px);
    max-width: calc(25% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-5 > .card {
    flex-basis: calc(20% - 30px);
    max-width: calc(20% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-6 > .card {
    flex-basis: calc(16.6666666667% - 30px);
    max-width: calc(16.6666666667% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-7 > .card {
    flex-basis: calc(14.2857142857% - 30px);
    max-width: calc(14.2857142857% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-8 > .card {
    flex-basis: calc(12.5% - 30px);
    max-width: calc(12.5% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-9 > .card {
    flex-basis: calc(11.1111111111% - 30px);
    max-width: calc(11.1111111111% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-10 > .card {
    flex-basis: calc(10% - 30px);
    max-width: calc(10% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-11 > .card {
    flex-basis: calc(9.0909090909% - 30px);
    max-width: calc(9.0909090909% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-sm-12 > .card {
    flex-basis: calc(8.3333333333% - 30px);
    max-width: calc(8.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; } }
@media (min-width: 768px) {
  .deck-md-1 > .card {
    flex-basis: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0; }

  .deck-md-2 > .card {
    flex-basis: calc(50% - 30px);
    max-width: calc(50% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-3 > .card {
    flex-basis: calc(33.3333333333% - 30px);
    max-width: calc(33.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-4 > .card {
    flex-basis: calc(25% - 30px);
    max-width: calc(25% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-5 > .card {
    flex-basis: calc(20% - 30px);
    max-width: calc(20% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-6 > .card {
    flex-basis: calc(16.6666666667% - 30px);
    max-width: calc(16.6666666667% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-7 > .card {
    flex-basis: calc(14.2857142857% - 30px);
    max-width: calc(14.2857142857% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-8 > .card {
    flex-basis: calc(12.5% - 30px);
    max-width: calc(12.5% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-9 > .card {
    flex-basis: calc(11.1111111111% - 30px);
    max-width: calc(11.1111111111% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-10 > .card {
    flex-basis: calc(10% - 30px);
    max-width: calc(10% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-11 > .card {
    flex-basis: calc(9.0909090909% - 30px);
    max-width: calc(9.0909090909% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-md-12 > .card {
    flex-basis: calc(8.3333333333% - 30px);
    max-width: calc(8.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; } }
@media (min-width: 992px) {
  .deck-lg-1 > .card {
    flex-basis: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0; }

  .deck-lg-2 > .card {
    flex-basis: calc(50% - 30px);
    max-width: calc(50% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-3 > .card {
    flex-basis: calc(33.3333333333% - 30px);
    max-width: calc(33.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-4 > .card {
    flex-basis: calc(25% - 30px);
    max-width: calc(25% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-5 > .card {
    flex-basis: calc(20% - 30px);
    max-width: calc(20% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-6 > .card {
    flex-basis: calc(16.6666666667% - 30px);
    max-width: calc(16.6666666667% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-7 > .card {
    flex-basis: calc(14.2857142857% - 30px);
    max-width: calc(14.2857142857% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-8 > .card {
    flex-basis: calc(12.5% - 30px);
    max-width: calc(12.5% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-9 > .card {
    flex-basis: calc(11.1111111111% - 30px);
    max-width: calc(11.1111111111% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-10 > .card {
    flex-basis: calc(10% - 30px);
    max-width: calc(10% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-11 > .card {
    flex-basis: calc(9.0909090909% - 30px);
    max-width: calc(9.0909090909% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-lg-12 > .card {
    flex-basis: calc(8.3333333333% - 30px);
    max-width: calc(8.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; } }
@media (min-width: 1200px) {
  .deck-xl-1 > .card {
    flex-basis: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0; }

  .deck-xl-2 > .card {
    flex-basis: calc(50% - 30px);
    max-width: calc(50% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-3 > .card {
    flex-basis: calc(33.3333333333% - 30px);
    max-width: calc(33.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-4 > .card {
    flex-basis: calc(25% - 30px);
    max-width: calc(25% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-5 > .card {
    flex-basis: calc(20% - 30px);
    max-width: calc(20% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-6 > .card {
    flex-basis: calc(16.6666666667% - 30px);
    max-width: calc(16.6666666667% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-7 > .card {
    flex-basis: calc(14.2857142857% - 30px);
    max-width: calc(14.2857142857% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-8 > .card {
    flex-basis: calc(12.5% - 30px);
    max-width: calc(12.5% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-9 > .card {
    flex-basis: calc(11.1111111111% - 30px);
    max-width: calc(11.1111111111% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-10 > .card {
    flex-basis: calc(10% - 30px);
    max-width: calc(10% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-11 > .card {
    flex-basis: calc(9.0909090909% - 30px);
    max-width: calc(9.0909090909% - 30px);
    margin-left: 15px;
    margin-right: 15px; }

  .deck-xl-12 > .card {
    flex-basis: calc(8.3333333333% - 30px);
    max-width: calc(8.3333333333% - 30px);
    margin-left: 15px;
    margin-right: 15px; } }

Bootstrap 4 个卡片组，列数基于视口

Bootstrap 4 card-deck with number of columns based on viewport

css

twitter-bootstrap

twitter-bootstrap-4

bootstrap-4

HTML

SCSS

CSS