背景
用于控制元素背景相对于边框、内边距和内容的位置的工具类。
| Class | Styles |
|---|---|
bg-origin-border | background-origin: border-box; |
bg-origin-padding | background-origin: padding-box; |
bg-origin-content | background-origin: content-box; |
使用 bg-origin-border、bg-origin-padding 和 bg-origin-content 工具类来控制元素背景的渲染位置：
bg-origin-border
bg-origin-padding
bg-origin-content
<div class="border-4 bg-[url(/img/mountains.jpg)] bg-origin-border p-3 ..."></div><div class="border-4 bg-[url(/img/mountains.jpg)] bg-origin-padding p-3 ..."></div><div class="border-4 bg-[url(/img/mountains.jpg)] bg-origin-content p-3 ..."></div>Prefix a background-origin utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:
<div class="bg-origin-border md:bg-origin-padding ..."> <!-- ... --></div>Learn more about using variants in the variants documentation.