#tab_ *{margin:0; padding:0; line-height:20px;}
 #tab_ .cur{font-weight:900;cursor:default;z-index:1;background-image:url(../images/tab1.gif); color:#555}
 #tab_{position:relative;float:left;height:300px;width:600px;}
 #tab_ h4{float:left;height:43px;margin:0;display:inline;line-height:30px;width:130px;position:relative;z-index:0;text-align:center;font-weight:normal;cursor:pointer;
         font-size:18px; color:#aaa; font-weight:bolder;background-image:url(../images/tab.gif); background-repeat:no-repeat;}
 .c{position:absolute;top:32px; border-left:2px solid #ddd; border-right:2px solid #ddd;left:0;width:835px;padding:100px;overflow:hidden;
    display:block; background-color:#f4f4f4}
 #tab_{clear:left;
    top: 0px;
    left: 0px;
}
 #tab_ h1{clear:left;padding:10px 0}