用自动放置包装CSS网格

Question

我正在尝试构建一个包含卡片类物品的网格。每种类型的单元格（标题，图像，文本，按钮等）在每行中的高度均应相等，这取决于最大单元格的内容，如下面的代码段所示。

现在，我正在尝试限制列数，并让卡片包装起来，就像在基于Flexbox的解决方案中使用flex-wrap: wrap;一样。列数应通过媒体查询确定。是否可以使用不支持的subgrids来实现？

此外，使用子网格的解决方案会是什么样子？我猜它会降级为当前浏览器中高度不相等的单元格吗？

.grid {
  display: grid;
  grid-template-rows: repeat(4, auto);
  grid-gap: 10px;
  grid-auto-flow: column;
  grid-auto-columns: auto;
}

<div class="grid">

  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">text
  </p>
  <button class="d">Button</button>

  <h2 class="a">Header 2 is longer and may span multiple lines</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est.
  </p>
  <button class="d">Button</button>


  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget.
  </p>
  <button class="d">Button</button>

  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget. Suspendisse pulvinar arcu massa, quis
    varius velit facilisis tincidunt. Proin sed cursus orci.
  </p>
  <button class="d">Button</button>

  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit.
  </p>
  <button class="d">Button</button>
</div>

Answer 1

这是当我们需要子网格时的一个很好的例子-对齐网格表亲在诸如此类的布局中至关重要。

在浏览器实现Subgrids的提议的 2级规范之前，我们只能包装元素中的每一列，然后包装 >使用外部网格容器。

下面是Editor's Draft摘录的 CSS网格布局模块2级：

  

2。子网格

     

通过显示以下内容，网格项目本身可以是网格容器：在这种情况下，其内容的布局将是   与其所参与的网格布局无关。

     

在某些情况下，可能需要多个网格的内容   彼此对齐的项目。本身就是网格的网格容器   项可以将其行和列的定义推迟到其父项   网格容器，使其成为子网格。在这种情况下，   子网格参与调整父网格的网格大小   容器，使两个网格的内容对齐。

可以找到here。该书很好地讨论了这个问题。

这里是使用嵌套网格容器的模型（子网格可以看起来像这样，但不会违反表亲规则）-请参见下面的演示：< / p>

.wrapper {
  display: grid;
  grid-gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
}

.grid {
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  justify-items: flex-start;
  border: 1px solid #07c;
}

img {
  width: 100%;
}

button {
  align-self: center;
  justify-self: center;
}

p {
  padding: 0 10px;
}

<div class="wrapper">

  <div class="grid">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100" />
    <p class="c">text
    </p>
    <button class="d">Button</button>
  </div>

  <div class="grid">
    <h2 class="a">Header 2 is longer and may span multiple lines</h2>
    <img class="b" src="https://placekitten.com/400/100" />
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est.
    </p>
    <button class="d">Button</button>
  </div>

  <div class="grid">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100" />
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget.
    </p>
    <button class="d">Button</button>
  </div>

  <div class="grid">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100" />
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget. Suspendisse pulvinar arcu massa, quis
      varius velit facilisis tincidunt. Proin sed cursus orci.
    </p>
    <button class="d">Button</button>
  </div>

  <div class="grid">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100" />
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit.
    </p>
    <button class="d">Button</button>
  </div>

</div>

可能的定义可能是：

.wrapper {
  display: grid; /* outer grid */
  /* sets a wrapping grid container with items of width around 400px */
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); 
}

.grid {
  grid-row: span 4; /* span 4 rows */
  display: grid;
  /* magic is here */
  grid-template-rows: subgrid; /* create a sub-grid with the 4 parent grid rows */
}

Answer 2

您现在已经有了一个解决方案，它对浏览器的支持并不理想，但是无论如何仍能正常工作，那就是显示：内容

您需要将元素包装在辅助div中，我将其设置为类 card 。然后，使用以下显示内容使名片消失：

.grid {
  display: grid;
  grid-gap: 10px;
  grid-auto-columns: 1fr;
  grid-auto-flow: dense;
}

.card {
  display: contents;
}

.card:nth-child(odd) * {
  grid-column-start: 1;
}

.card:nth-child(even) * {
  grid-column-start: 2;
}

@media screen and ( min-width: 1300px) {
  .card:nth-child(3n + 0) * {
    grid-column-start: 3;
  }
  .card:nth-child(3n + 1) * {
    grid-column-start: 1;
  }
  .card:nth-child(3n + 2) * {
    grid-column-start: 2;
  }
}

<div class="grid">

  <div class="card">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100">
    <p class="c">text
    </p>
    <button class="d">Button</button>
  </div>

  <div class="card">
    <h2 class="a">Header 2 is longer and may span multiple lines</h2>
    <img class="b" src="https://placekitten.com/400/100">
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est.
    </p>
    <button class="d">Button</button>
  </div>

  <div class="card">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100">
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget.
    </p>
    <button class="d">Button</button>
  </div>

  <div class="card">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100">
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget. Suspendisse pulvinar arcu massa, quis
      varius velit facilisis tincidunt. Proin sed cursus orci.
    </p>
    <button class="d">Button</button>
  </div>

  <div class="card">
    <h2 class="a">Header 1</h2>
    <img class="b" src="https://placekitten.com/400/100">
    <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit.
    </p>
    <button class="d">Button</button>
  </div>
</div>

我只是错过了最简单的解决方案：

由于您已经有一个平面HTML，并且打算使用媒体查询，因此可以在平面HTMl上使用相同的想法（第n个选择器）

.grid {
  display: grid;
  grid-gap: 10px;
  grid-auto-flow: dense;
  grid-auto-rows: 1fr;
}

.card {
  display: contents;
}

h2,
img,
p,
button {
  grid-column-start: 1;
}

h2:nth-of-type(even),
img:nth-of-type(even),
p:nth-of-type(even),
button:nth-of-type(even) {
  grid-column-start: 2;
}

@media screen and ( min-width: 1300px) {

h2:nth-of-type(3n + 1),
img:nth-of-type(3n + 1),
p:nth-of-type(3n + 1),
button:nth-of-type(3n + 1) {
  grid-column-start: 1;
}
h2:nth-of-type(3n + 2),
img:nth-of-type(3n + 2),
p:nth-of-type(3n + 2),
button:nth-of-type(3n + 2) {
  grid-column-start: 2;
}
h2:nth-of-type(3n),
img:nth-of-type(3n),
p:nth-of-type(3n),
button:nth-of-type(3n) {
  grid-column-start: 3;
}

}

<div class="grid">

  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">text
  </p>
  <button class="d">Button</button>

  <h2 class="a">Header 2 is longer and may span multiple lines</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est.
  </p>
  <button class="d">Button</button>


  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget.
  </p>
  <button class="d">Button</button>

  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis et cursus ligula. Maecenas non pharetra dui, eu tincidunt mi. Vivamus vitae luctus risus. Etiam vehicula sem est, non ultricies lectus placerat eget. Suspendisse pulvinar arcu massa, quis
    varius velit facilisis tincidunt. Proin sed cursus orci.
  </p>
  <button class="d">Button</button>

  <h2 class="a">Header 1</h2>
  <img class="b" src="https://placekitten.com/400/100" />
  <p class="c">Lorem ipsum dolor sit amet, consectetur adipiscing elit.
  </p>
  <button class="d">Button</button>
</div>