最小化和完全透明样式
padding: 0px 0px 0px 0px;
margin: :0px 0px 0px 0px;
backgournd: #666;
filter: alpha(opacity=0); /*IE*/
-moz-opacity: 0.0; /*MOZ , FF*/
opacity: 0.0; /*CSS3, FF1.5*/
padding: 0px 0px 0px 0px;
margin: :0px 0px 0px 0px;
backgournd: #666;
filter: alpha(opacity=0); /*IE*/
-moz-opacity: 0.0; /*MOZ , FF*/
opacity: 0.0; /*CSS3, FF1.5*/