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characters

语法:

border-top || ||

= | thin | medium | thick

= none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset

默认值看每个独立属性

适用于:所有元素

继承性:无

动画性:看每个独立属性

计算值:看每个独立属性

相关属性:[ border ] || [ border-right ] || [ border-bottom ] || [ border-left ]

取值:

  • :设置或检索对象边框宽度。

  • :设置或检索对象边框样式。

  • :设置或检索对象边框颜色。

说明:

复合属性。设置对象顶部边框的特性。参阅border属性。
  • 如使用该复合属性定义其单个参数,则其他参数的默认值将无条件覆盖各自对应的单个属性设置。

  • 对应的脚本特性为borderTop

兼容性:

Values IE Firefox Chrome Safari Opera iOS Safari Android Browser Android Chrome
Basic Support 6.0+ 2.0+ 4.0+ 3.1+ 3.5+ 3.2+ 2.1+ 18.0+

实例

    border-top_CSS参考手册_web前端开发参考手册系列   
定义顶部边框特性

运行实例 »

点击 "运行实例" 按钮查看在线实例


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