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 February 2017.
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 # the-border-image-outset |