过滤
backdrop-filter: brightness()
用于将背景亮度滤镜应用于元素的工具。
| 类 | 样式 |
|---|---|
backdrop-brightness-<number> | backdrop-filter: brightness(<number>%); |
backdrop-brightness-(<custom-property>) | backdrop-filter: brightness(var(<custom-property>)); |
backdrop-brightness-[<value>] | backdrop-filter: brightness(<value>); |
示例(Examples)
¥Examples
基本示例(Basic example)
¥Basic example
使用 backdrop-brightness-50 和 backdrop-brightness-100 等工具来控制元素的背景亮度：
¥Use utilities like backdrop-brightness-50 and backdrop-brightness-100 to control an element's backdrop brightness:
backdrop-brightness-50
backdrop-brightness-150
<div class="bg-[url(/img/mountains.jpg)]"> <div class="bg-white/30 backdrop-brightness-50 ..."></div></div><div class="bg-[url(/img/mountains.jpg)]"> <div class="bg-white/30 backdrop-brightness-150 ..."></div></div>使用自定义值(Using a custom value)
¥Using a custom value
使用 backdrop-brightness-[<value>] 语法 根据完全自定义的值设置 backdrop brightness：
<div class="backdrop-brightness-[1.75] ..."> <!-- ... --></div>对于 CSS 变量，还可以使用 backdrop-brightness-(<custom-property>) 语法：
<div class="backdrop-brightness-(--my-backdrop-brightness) ..."> <!-- ... --></div>这只是简写，用于 backdrop-brightness-[var(<custom-property>)] 它会自动为你添加 var() 函数。
响应式设计(Responsive design)
¥Responsive design
在 backdrop-filter: brightness() 工具前面使用断点变体如 md: 仅在 medium 屏幕尺寸及以上时应用工具：
<div class="backdrop-brightness-110 md:backdrop-brightness-150 ..."> <!-- ... --></div>请参阅 变体文档 详细了解如何使用变体。