使弹性项目换行以创建新列



我正在填充div 中的元素,我想将它们排列成这样:

1 3
2 4

现在,它只是在下降

1
2
3
4

如何告诉它在 2 个元素之后移动到下一列?

.parent {
display: flex;
flex-direction: column;
flex-wrap: wrap;
}
<div class="parent">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>

您需要在容器上设置高度。否则,弹性项目如何知道在哪里包装?

height

.parent {
display: flex;
flex-direction: column;
flex-wrap: wrap;
align-content: flex-start; /* see notes */
height: 50px;
}
.item {
height: 25px;
}
<div class="parent">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>

注意:在多行 flex 项目换行时删除它们之间的空格(间隙(


order

或者,如果不想在容器上设置高度,可以使用order属性。

.parent {
display: inline-flex;
flex-wrap: wrap;
}
.item {
flex: 0 0 50%;
}
.item:nth-child(1) { order: 1; }
.item:nth-child(2) { order: 3; }
.item:nth-child(3) { order: 2; }
.item:nth-child(4) { order: 4; }
<div class="parent">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>

CSS 网格

以下是使用 CSS 网格布局的另一种方法:

.parent {
display: inline-grid;
grid-template-columns: 1fr 1fr;
grid-template-rows: 25px 25px;
grid-auto-flow: column;
grid-gap: 5px;
}
<div class="parent">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>

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