.work_menu{ position: fixed;  right:0px; height:200px;  width:45px;  _position: absolute; top:300px; }
.work_menu .work_menu_top{display:none;}
.work_menu .a{ }
.work_menu .work_menu_top a{display:block ; width:45px; height:45px; cursor:pointer; background:url(/images/work_menu.jpg) no-repeat 0 0;}
.work_menu .work_menu_top a:hover{ background:url(/images/work_menu.jpg) no-repeat 0 -45px;}
.work_menu .work_menu_fanhui a{display:block ; width:45px; height:45px; cursor:pointer;background:url(/images/work_menu.jpg) no-repeat -45px 0 ;}
.work_menu .work_menu_fanhui a:hover{background:url(/images/work_menu.jpg) no-repeat -45px -45px ;}
.work_menu .work_menu_parent a{display:block ; width:45px; height:45px; cursor:pointer;background:url(/images/work_menu.jpg) no-repeat -90px 0;}
.work_menu .work_menu_parent a:hover{background:url(/images/work_menu.jpg) no-repeat -90px -45px;}
.work_menu .work_menu_next a{display:block ; width:45px; height:45px; cursor:pointer;background:url(/images/work_menu.jpg) no-repeat -135px 0;}
.work_menu .work_menu_next a:hover{background:url(/images/work_menu.jpg) no-repeat -135px -45px;}
.work_menu .work_menu_share a{display:block ; width:45px; height:45px; cursor:pointer;background:url(/images/work_menu.jpg) no-repeat -180px 0;}
.work_menu .work_menu_share a:hover{background:url(/images/work_menu.jpg) no-repeat -180px -45px;}
.work_menu .work_menu_box{ position:relative}
.work_menu .work_menu_box .menu_share{ position:absolute; width:195px ; height:320px; background:#fff; left:45px; top:0px; border:1px solid #CCC; padding-left:5px; display:none }