Flexbox-4列网格最后一项拉伸

Question

我有一个简单的Flexbox布局，如下所示。

.container {
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
}

.item {
  background:teal;
  flex: 1 0 21%; margin:10px;
}

<div class="container">

  <div class="item">
    <h1>Item 1</h1>
    <p>
      This is some test content
    <p>
  </div>
  
    <div class="item">
    <h1>Item 2</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 3</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 4</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 5</h1>
    <p>
      This is some test content
    <p>
  </div>

</div>

我怎样才能使第5个项目只占用1/4列？我正在尝试创建4列网格，但是当少于4列时出现此问题。

Answer 1

删除flex增长1，否则它们将增长以填充行：

.container {
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
}

.item {
  background:teal;
  flex-basis:21%; /* just set the basis and leave grow and shrink as default */
  margin:10px;
}

<div class="container">

  <div class="item">
    <h1>Item 1</h1>
    <p>
      This is some test content
    <p>
  </div>
  
    <div class="item">
    <h1>Item 2</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 3</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 4</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 5</h1>
    <p>
      This is some test content
    <p>
  </div>

</div>

Answer 2

设置flex: 1 0 21%本质上就是设置

flex-grow: 1;
flex-shrink: 0;
flex-basis: 21%;

通过这种方式，21%部分实际上是无用的，因为您已将其设置为在行的一部分（flex-grow: 1）内可扩展。要解决此问题，您只需要将flex-basis设置为任何百分比，而无需设置其他百分比。通过直接定义flex-basis: 21%来实现。

Answer 3

我也有一种设置宽度的方法，我不知道这是否是您想要的。

.container {
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
}

.item {
  background:teal;
  margin:10px;
  width: 21%;
}

<div class="container">

  <div class="item">
    <h1>Item 1</h1>
    <p>
      This is some test content
    <p>
  </div>
  
    <div class="item">
    <h1>Item 2</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 3</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 4</h1>
    <p>
      This is some test content
    <p>
  </div>


  <div class="item">
    <h1>Item 5</h1>
    <p>
      This is some test content
    <p>
  </div>

</div>