.member_add_btn{ width:100%; margin-bottom:10px; overflow:hidden;}
.member_add_btn div{float:left;}
.member_add_btn a{display:block;width:122px;height:36px;}
.member_add_m3{margin-right:6px;}
.member_add_m3 a{background:url(/admin/images/login.gif) no-repeat 0 -41px;}
.member_add_m3 a:hover{background: url(/admin/images/login.gif) no-repeat 0 -123px;}
.member_add_m4 a{background:url(/admin/images/login.gif) no-repeat -128px -41px;}
.member_add_m4 a:hover{background:url(/admin/images/login.gif) no-repeat -128px -123px;}