abstract：<html><head>.box{height:80px;width:80px;border-right:red;solid}//设置边框</head><body><div class="box"></div></body></html>
<html>
<head>
.box{height:80px;width:80px;border-right:red;solid}//设置边框
</head>
<body>
<div class="box"></div>
</body>
</html>
Correcting teacher：韦小宝Correction time：2019-03-10 13:26:17
Teacher's summary：css实现边框样式可以有多种样式的 没事多去实现几种