滤镜
滤镜：contrast()
用于对元素应用对比度滤镜的工具。
| Class | Styles |
|---|---|
contrast-<number> | filter: contrast(<number>%); |
contrast-(<custom-property>) | filter: contrast(var(<custom-property>)); |
contrast-[<value>] | filter: contrast(<value>); |
示例
基本示例
使用 contrast-50 和 contrast-100 等工具来控制元素的对比度：
contrast-50
contrast-100
contrast-125
contrast-200
<img class="contrast-50 ..." src="/img/mountains.jpg" /><img class="contrast-100 ..." src="/img/mountains.jpg" /><img class="contrast-125 ..." src="/img/mountains.jpg" /><img class="contrast-200 ..." src="/img/mountains.jpg" />使用自定义值
Use the contrast-[<value>] syntax to set the contrast based on a completely custom value:
<img class="contrast-[.25] ..." src="/img/mountains.jpg" />For CSS variables, you can also use the contrast-(<custom-property>) syntax:
<img class="contrast-(--my-contrast) ..." src="/img/mountains.jpg" />This is just a shorthand for contrast-[var(<custom-property>)] that adds the var() function for you automatically.
响应式设计
Prefix a filter: contrast() utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:
<img class="contrast-125 md:contrast-150 ..." src="/img/mountains.jpg" />Learn more about using variants in the variants documentation.