css

#d1

{

height:100px;

width:100px;

border:solid(实线)/dashed(虚线)/dotted(点点点) 1px red;

border-top:(上边框)

border-right:(右边框)

border-bottom:(下边框)

border-left:(左边框)

border:solid(实线)/dashed(虚线)/dotted(点点点) 1px red;

border-top:(上边框)

border-right:(右边框)

border-bottom:(下边框)

border-left:(左边框)

background-color:red;

background-image:url()

}

css

原文：http://www.cnblogs.com/w123-w/p/5040010.html