弹性

​基本用法

¥Basic usage

​最初

¥Initial

使用 flex-initial 允许弹性项目收缩但不增长，考虑到它的初始大小：

¥Use flex-initial to allow a flex item to shrink but not grow, taking into account its initial size:

<div class="flex">
  <div class="flex-none w-14 ...">
    01
  </div>
  <div class="flex-initial w-64 ...">
    02
  </div>
  <div class="flex-initial w-32 ...">
    03
  </div>
</div>

​弹性 1

¥Flex 1

使用 flex-1 允许弹性项目根据需要增长和收缩，忽略其初始大小：

¥Use flex-1 to allow a flex item to grow and shrink as needed, ignoring its initial size:

<div class="flex">
  <div class="flex-none w-14 ...">
    01
  </div>
  <div class="flex-1 w-64 ...">
    02
  </div>
  <div class="flex-1 w-32 ...">
    03
  </div>
</div>

​自动

¥Auto

使用 flex-auto 允许弹性项目增长和收缩，同时考虑到它的初始大小：

¥Use flex-auto to allow a flex item to grow and shrink, taking into account its initial size:

<div class="flex ...">
  <div class="flex-none w-14 ...">
    01
  </div>
  <div class="flex-auto w-64 ...">
    02
  </div>
  <div class="flex-auto w-32 ...">
    03
  </div>
</div>

​无

¥None

使用 flex-none 防止弹性项目增长或收缩：

¥Use flex-none to prevent a flex item from growing or shrinking:

<div class="flex ...">
  <div class="flex-none w-14 ...">
    01
  </div>
  <div class="flex-none w-32 ...">
    02
  </div>
  <div class="flex-1 ...">
    03
  </div>
</div>

​有条件地应用

​悬停、聚焦和其他状态

Tailwind lets you conditionally apply utility classes in different states using variant modifiers. For example, use hover:flex-1 to only apply the flex-1 utility on hover.

<div class="flex-none hover:flex-1">
  <!-- ... -->
</div>

For a complete list of all available state modifiers, check out the Hover, Focus, & Other States documentation.

​断点和媒体查询

You can also use variant modifiers to target media queries like responsive breakpoints, dark mode, prefers-reduced-motion, and more. For example, use md:flex-1 to apply the flex-1 utility at only medium screen sizes and above.

<div class="flex-none md:flex-1">
  <!-- ... -->
</div>

To learn more, check out the documentation on Responsive Design, Dark Mode and other media query modifiers.

​使用自定义值

¥Using custom values

​自定义主题

¥Customizing your theme

默认情况下，Tailwind 提供四个 flex 工具。你可以通过编辑 tailwind.config.js 文件中的 theme.flex 或 theme.extend.flex 来自定义这些值。

¥By default, Tailwind provides four flex utilities. You can customize these values by editing theme.flex or theme.extend.flex in your tailwind.config.js file.

module.exports = {
  theme: {
    extend: {
      flex: {
        '2': '2 2 0%'
      }
    }
  }
}

在 主题定制 文档中了解有关自定义默认主题的更多信息。

¥Learn more about customizing the default theme in the theme customization documentation.

​任意值

¥Arbitrary values

If you need to use a one-off flex value that doesn’t make sense to include in your theme, use square brackets to generate a property on the fly using any arbitrary value.

<div class="flex-[2_2_0%]">
  <!-- ... -->
</div>

Learn more about arbitrary value support in the arbitrary values documentation.