CSS Grid在中间有一个额外的包装器

Question

我想使用CSS Grid的网格模板区域。

但问题是我正在使用的CMS正在添加大量额外的包装器。 有没有办法忽略额外的包装？因为它弄乱了漂亮的网格区域......

我正在尝试覆盖css网格的自动放置机制。 因此，任何位于中间且未分配特定网格区域的div将出现在网格的末尾，并且不会弄乱网格本身。

我在这里创建了一个问题的例子 - https://codepen.io/shaal/pen/qPvQWW

你可以看到，由于额外的包装，'sidebar'元素没有分配到我想要的区域。

HTML

Statement1 VALUE1
Statement1 VALUE2

Statement2 VALUE3
Statement2 VALUE4

.container {
  display: grid;
  grid-gap: 5px;
  grid-template-areas: "header header header" "sidebar content content" "sidebar content content" "footer footer footer";
}

.header {
  grid-area: header;
}

.sidebar {
  grid-area: sidebar;
}

.content {
  grid-area: content;
  height: 180px;
}

.footer {
  grid-area: footer;
}

Answer 1

如果使用unwrap jQuery函数删除这个div对你来说不是问题我会用它。

$(".sidebar").unwrap(".cms-annoying-wrapper");

否则在普通JS中： https://plainjs.com/javascript/manipulation/unwrap-a-dom-element-35/

Answer 2

Grid Layout Module Level 2 - Subgrids are supposed to solve this problem.

---

In the meantime, there is a workaround (currently only working in firefox):

display: contents (caniuse)

From Caniuse:

display: contents causes an element's children to appear as if they were direct children of the element's parent, ignoring the element itself. This can be useful when a wrapper element should be ignored when using CSS grid or similar layout techniques.

So in your scenario you could simply add the rule:

.cms-annoying-wrapper {
  display: contents;
}

Open the following snippet on Firefox:

body {
  margin: 10px;
  text-align: center;
  width: 580px;
}
.cms-annoying-wrapper {
  display: contents;
}


.container {
  display: grid;
  grid-gap: 5px;
  grid-template-areas: 
    "header header header"
    "sidebar content content"
    "sidebar content content"
    "footer footer footer";
}

.item {
  color: white;
  padding: 1.5em 0;
  font-size: 2em;
}

.header {
  background: #0d6;
}

.sidebar {
  background: #f00;
}

.content {
  background: #d60;
}

.footer {
  background: #60d;
}

.header {
  grid-area: header;
}

.sidebar {
  grid-area: sidebar;
}

.content {
  grid-area: content;
  height: 180px;
}

.footer {
  grid-area: footer;
}

<h1>CSS GRID</h1>
<div class="container">
  <div class="item header">Header</div>
  <div class="cms-annoying-wrapper">
    <div class="item sidebar">Sidebar</div>
    <div class="item content">Content</div>
  </div>
  <div class="item footer">Footer</div>
</div>

Codepen Demo (firefox)