.t_bg { position:fixed; top:0; left:0; background:url(/images/30.png); width:100%; height:100%; z-index:9999999; }
.t_bg .tishi { width:400px; height:162px; background:#fff;
               padding:0;
            -moz-box-shadow: 0px 0px 20px #777;
    -webkit-box-shadow: 0px 0px 20px #777;
    box-shadow: 0px 0px 20px #777;
    border-radius:4px;
    overflow:hidden;
    position:absolute; top:50%; left:50%; margin:-81px 0 0 -200px;
    }
.t_bg .tishi h2 { position:relative; height:40px; background:#f9f9f9; line-height:40px; padding:0 13px; font-size:14px; font-family:'宋体'; color:#333; border-bottom:solid 1px #ddd;}
.t_bg .tishi h2 .close { position:absolute; top:13px; right:13px; width:14px; height:14px; background:url(/images/close.gif) no-repeat; cursor:pointer; }
.t_bg .tishi p { padding:26px 0 14px; text-align:center; color:#f00; font-size:14px; font-family:Microsoft Yahei; }
.t_bg .tishi .queding { display:block; width:120px; height:36px; line-height:36px; text-align:center; cursor:pointer; margin:0 auto; background:#f1f1f1; border:solid 1px #ccc; border-radius:2px;}
.t_bg .tishi .queding:hover { background:#f9f9f9; border-color:#ddd; text-decoration:none;}