Background Attachment 背景附件
用于控制背景图像在滚动时的行为的实用程序。
| Class | Properties |
|---|
基本用法
Fixed 固定
使用 bg-fixed 来修复背景图相对于视口的位置。
Maybe we can live without libraries, people like you and me. Maybe. Sure, we're too old to change the world, but what about that kid, sitting down, opening a book, right now, in a branch at the local library and finding drawings of pee-pees and wee-wees on the Cat in the Hat and the Five Chinese Brothers? Doesn't HE deserve better?
Look. If you think this is about overdue fines and missing books, you'd better think again. This is about that kid's right to read a book without getting his mind warped! Or: maybe that turns you on, Seinfeld; maybe that's how y'get your kicks. You and your good-time buddies.
<div class="bg-fixed ..." style="background-image: url(...)"></div>Local 本地
使用 bg-local 来滚动背景图像与容器和视口。
"Because the mail never stops. It just keeps coming and coming and coming, there's never a let-up. It's relentless. Every day it piles up more and more and more. And you gotta get it out but the more you get it out the more it keeps coming in. And then the barcode reader breaks and it's Publisher's Clearing House day."
<div class="bg-local ..." style="background-image: url(...)"></div>Scroll 滚动
使用 bg-scroll 来使背景图像随着视口滚动，而不是随着容器滚动。
"Because the mail never stops. It just keeps coming and coming and coming, there's never a let-up. It's relentless. Every day it piles up more and more and more. And you gotta get it out but the more you get it out the more it keeps coming in. And then the barcode reader breaks and it's Publisher's Clearing House day."
<div class="bg-scroll ..." style="background-image: url(...)"></div>有条件地应用
悬停、焦点和其他状态
Tailwind 允许您使用变体修饰符在不同状态下有条件地应用实用程序类。例如，使用 hover:bg-fixed 只在悬停时应用 bg-fixed 实用程序。
<p class="bg-local hover:bg-fixed">
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</p>有关所有可用状态修改器的完整列表，请查看悬停、焦点和其他状态文档。
断点和媒体查询
您还可以使用变体修饰符来针对响应式断点、深色模式、prefers-reduced-motion 等媒体查询进行定位。例如，使用 md:bg-fixed 仅在中等屏幕尺寸及以上应用 bg-fixed 实用程序。
<p class="bg-local md:bg-fixed">
<!-- ... -->
</p>