摘要: 语法:background-position: length || lengthbackground-position: position || position取值:length: 百分数|由浮点数字和单位标识符组成的长度值postion: top | center | bottom | left... 阅读全文
posted @ 2015-07-15 08:10 ErduYang 阅读(296) 评论(0) 推荐(0)