Div 不像我想的那样浮动

Question

我在单个 div 中有 5 个 div，我会让它在左侧浮动 2 个，在右侧浮动 3 个：

.container {
  height: 400px;
  border: 1px solid black;
}
.first, .second, .third, .fourth, .fifth {
  width: 50%;
}

.first {
  height: 300px;
  background-color: red;
  float: left;
}

.second {
  height: 100px;
  background-color: blue;
  float: left;
}

.third {
  height: 100px;
  background-color: green;
  float: right;
}

.fourth {
  height: 200px;
  background-color: yellow;
  float: right;
}

.fifth {
  height: 100px;
  background-color: aquamarine;
  float: right;
}

<div class="container">
    <div class="first"> FIRST </div>
    <div class="second"> SECOND </div>
    <div class="third"> THIRD </div>
    <div class="fourth"> FOURTH</div>
    <div class="fifth"> FIFTH </div>
</div>

我希望它们被放置在：

FIRST and SECOND at left
THIRD, FORTH and FIFTH at right.
Instead, they are placed like:
FIRST and FIFTH at left
SECOND, THIRD and FOURTH at right.

你知道怎么解决吗？这是我的代码：https://jsfiddle.net/82bkdbpn/

Answer 1

因为您已经在 container 元素上定义了固定高度，您可以使用 Flexbox 来执行此操作并定义 flex-direction: column.

.container {
  height: 400px;
  border: 1px solid black;
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
}
.first, .second, .third, .fourth, .fifth {
  width: 50%;
  height: 100px;
}
.first {
  height: 300px;
  background-color: red;
}
.fourth {
  height: 200px;
  background-color: yellow;
}
.second {background-color: blue;}
.third {background-color: green;}
.fifth {background-color: aquamarine;}

<div class="container">
  <div class="first"> FIRST </div>
  <div class="second"> SECOND </div>
  <div class="third"> THIRD </div>
  <div class="fourth"> FOURTH</div>
  <div class="fifth"> FIFTH </div>
</div>

Answer 2

您可以将 div 包裹在 Columns 中，并将这两个浮动。或者你可以使用 flexbox，Nenad Vracar 对此有很好的回答。

这是一个包含两个列包装 div 元素的示例：

.container {
  height: 400px;
  border: 1px solid black;
}

.col {
  width: 50%;
  float: left;
}

.first {
  height: 300px;
  background-color: red;
}

.second {
  height: 100px;
  background-color: blue;
}

.third {
  height: 100px;
  background-color: green;
}

.fourth {
  height: 200px;
  background-color: yellow;
}

.fifth {
  height: 100px;
  background-color: aquamarine;
}

<div class="container">
  <div class="col">
    <div class="first"> FIRST </div>
    <div class="second"> SECOND </div>
  </div>
  <div class="col">
    <div class="third"> THIRD </div>
    <div class="fourth"> FOURTH</div>
    <div class="fifth"> FIFTH </div>
  </div>
</div>

Div 不像我想的那样浮动

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css-float