backdrop-filter: opacity()

示例

基础示例

使用 backdrop-opacity-50 和 backdrop-opacity-75 等工具类来控制应用于元素的所有背景模糊滤镜的不透明度：

backdrop-opacity-10

backdrop-opacity-60

backdrop-opacity-95

<div class="bg-[url(/img/mountains.jpg)]">
  <div class="bg-white/30 backdrop-invert backdrop-opacity-10 ..."></div>
</div>
<div class="bg-[url(/img/mountains.jpg)]">
  <div class="bg-white/30 backdrop-invert backdrop-opacity-60 ..."></div>
</div>
<div class="bg-[url(/img/mountains.jpg)]">
  <div class="bg-white/30 backdrop-invert backdrop-opacity-95 ..."></div>
</div>

使用自定义值

Use the backdrop-opacity-[<value>] syntax to set the 背景滤镜不透明度 based on a completely custom value:

<div class="backdrop-opacity-[.15] ...">
  <!-- ... -->
</div>

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

<div class="backdrop-opacity-(--my-backdrop-filter-opacity) ...">
  <!-- ... -->
</div>

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

响应式设计

Prefix a backdrop-filter: opacity() utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:

<div class="backdrop-opacity-100 md:backdrop-opacity-60 ...">
  <!-- ... -->
</div>

Learn more about using variants in the variants documentation.