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本文档使用
php.cn手册 发布
文字
说明：
擦除属性申明。
一个属性定义了
unset值，如果该属性是默认继承属性，该值等同于inherit，如果该属性是非继承属性，该值等同于initialunset属于关键字，这表示所有的属性都可以接受该值，本手册为了与规范保持一致，未将该值放置到各属性的取值中。正常工作的例子：
示例代码：
div { border: unset; } div { border: initial; }
如上述代码，2条规则的结果是相同的
兼容性：
| IE | Firefox | Chrome | Safari | Opera | iOS Safari | Android Browser | Android Chrome |
|---|---|---|---|---|---|---|---|
| 6.0-13.0 | 2.0-26.0 | 4.0-40.0 | 6.0-9.0 | 15.0-27.0 | 6.0-9.0 | 2.1-4.4.4 | 18.0-39.0 |
| 27.0+ | 41.0+ | 28.0+ | 44.0+ | 40.0+ |