border-image-outset
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
概述
border-image-outset 属性定义边框图像可超出边框盒的大小。
语法
css
/* <length> 值 */ border-image-outset: 1rem; /* <number> 值 */ border-image-outset: 1.5; /* 上、下 | 左、右 */ border-image-outset: 1 1.2; /* 上 | 左、右 | 下 */ border-image-outset: 30px 2 45px; /* 上 | 右 | 下 | 左 */ border-image-outset: 7px 12px 14px 5px; /* 全局值值 */ border-image-outset: inherit; border-image-outset: initial; border-image-outset: revert; border-image-outset: revert-layer; border-image-outset: unset; 值
形式定义
| 初始值 | 0 |
|---|---|
| 适用元素 | all elements, except internal table elements when border-collapse is collapse. It also applies to ::first-letter. |
| 是否是继承属性 | 否 |
| 计算值 | as specified, but with relative lengths converted into absolute lengths |
| 动画类型 | 按计算值的类型 |
形式语法
border-image-outset =
[ <length [0,∞]> | <number [0,∞]> ]{1,4}
规范
| Specification |
|---|
| CSS Backgrounds and Borders Module Level 3 # border-image-outset |
浏览器兼容性
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