CSS 边框简写属性
CSS 边框 - 简写属性
正如您在上一页看到的那样，在处理边框时，需要考虑许多属性。
为了缩短代码，也可以在一个属性中指定所有单独的边框属性。
border 属性是以下单独边框属性的简写属性
border-widthborder-style(必需)border-color
您也可以只为一边指定所有单独的边框属性
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