、请阅读下面的代码,根据注释中的要求填写代码。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>边框属性</title>
<style type="text/css">
.box{
width:300px;
height:300px;
_____________________; /*设置顶部边框线为1px,实线,黑色;*/
_____________________; /*设置右侧边框线为2px,虚线,红色;*/
_____________________; /*设置底部边框线为4px,实线,绿色;*/
_____________________; /*设置左侧边框线为8px,虚线,蓝色;*/
}
</style>
</head>
<body>
<div class="box">我是带边框的盒子</div>
</body>
</html> (8分)
border-top:1px solid black;
border-right:2px dashed red;
border-bottom:4px solid green;
border-left:8px dashed blue;
border-top:1px solid #353534;
border-right:2px dashed #f00;
border-bottom:4px solid #00ff2b;
border-left:8px dashed #0043ff;
去 w3c school 好好看一下吧, 很简单的东西