border-image-outset

概述

border-image-outset属性定义边框图像可超出边框盒的大小。

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
计算值as specified, but with relative lengths converted into absolute lengths
Animation typeby computed value type

语法

Formal syntax: 
[ <length> | <number> ]{1,4}
/* border-image-outset: sides */
border-image-outset: 30%;

/* border-image-outset:垂直 水平 */
border-image-outset: 10% 30%;

/* border-image-outset: 顶 水平 底 */
border-image-outset: 30px 30% 45px;

/* border-image-outset:顶 右 底 左  */
border-image-outset: 7px 12px 14px 5px;

border-image-repeat: inherit;

sides
边框图像在四个方向超出边框盒的<length><number>数量。
horizontal
边框图像在水平方向(左和右)超出边框盒的<length><number>数量.
vertical
边框图像在垂直方向(上和下)超出边框盒的<length><number>数量.
top
边框图像在上方超出边框盒的<length><number>数量.
bottom
边框图像在下方超出边框盒的<length><number>数量.
right
边框图像在右方超出边框盒的<length><number>数量.
left
边框图像在左方超出边框盒的<length><number>数量.
inherit
四个方向的值都继承于父元素的该属性计算后值。

规范

规范 状态 备注
CSS Backgrounds and Borders Module Level 3
border-image-outset
Candidate Recommendation 首次定义

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help! (en-US)

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 15.0 15.0 (15.0) 11 15 6
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ? 15.0 (15.0) 未实现 ? ?