边框属性：
border-radius：添加圆角
div
{
border:2px solid;
border-radius:25px;
-moz-border-radius:25px; /* Old Firefox */
}
box-shadow 用于向方框添加阴影
div
{
box-shadow: 10px 10px 5px #888888;
}
border-image 属性，您可以使用图片来创建边框
div{border-image:url(border.png) 30 30 round;-moz-border-image:url(border.png) 30 30 round;/* 老的 Firefox */-webkit-border-image:url(border.png) 30 30 round;/* Safari 和 Chrome */-o-border-image:url(border.png) 30 30 round;/* Opera */}
