flex

示例

基础示例

使用 flex-<number> 功能类(如 flex-1)让一个flex项目根据需要增长和收缩，忽略其初始大小：

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

Initial

使用 flex-initial 允许flex项目收缩但不增长，同时考虑其初始大小：

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

Auto

使用 flex-auto 允许flex项目增长和收缩，同时考虑其初始大小：

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

None

使用 flex-none 防止flex项目增长或收缩：

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

使用自定义值

Use the flex-[<value>] syntax to set the flex shorthand property based on a completely custom value:

<div class="flex-[3_1_auto] ...">  <!-- ... --></div>

For CSS variables, you can also use the flex-(<custom-property>) syntax:

<div class="flex-(--my-flex) ...">  <!-- ... --></div>

This is just a shorthand for flex-[var(<custom-property>)] that adds the var() function for you automatically.

响应式设计

Prefix a flex utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:

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

Learn more about using variants in the variants documentation.