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characters

语法:

outline-width | thin | medium | thick

默认值medium

适用于:所有元素

继承性:无

动画性:当取值为

计算值:绝对长度;如果 <' outline-style '> 的值为none时,则计算值为0

取值:

  • :用长度值来定义轮廓的厚度。不允许负值

  • medium:定义默认宽度的轮廓。

  • thin:定义比默认宽度细的轮廓。

  • thick:定义比默认宽度粗的轮廓。

说明:

设置或检索对象外的线条轮廓的宽度。参阅 <' outline '> 属性。
  • outlines相关属性不占据布局空间,不会影响元素的尺寸;

  • outlines可能是非矩形;

  • 不允许类似 <' border-width '> 属性那样能将自身拆分为 <' border-top-width '> , <' border-right-width '> , <' border-bottom-width '> , <' border-left-width '>

  • 对应的脚本特性为outlineWidth

兼容性:

Values IE Firefox Chrome Safari Opera iOS Safari Android Browser Android Chrome
Basic Support 6.0-7.0 2.0+ 4.0+ 6.0+ 15.0+ 6.0+ 2.1+ 18.0+
8.0+

示例:

实例

    outline-width_CSS参考手册_web前端开发参考手册系列   
注意边框线外面的红色轮廓
outline-width:10px;

运行实例 »

点击 "运行实例" 按钮查看在线实例

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