#memfeedback{ position:absolute;width:468px; height:333px; z-index:98;}

#memfeedback .fb_top{width:468px; height:31px;background:url(/control/images/fb_topbgCC.gif) no-repeat;}
#memfeedback .fb_top .title{float:left;font-weight: bold;font-size:14px;padding:7px 0px 0px 12px;color:#fff;}
#memfeedback .fb_top .btnBar{width:20px;float:right; cursor:pointer;padding-right:15px;}
#memfeedback .fb_top .btnBar img{float:right;margin-top:12px;}

#memfeedback .fb_left{float:left;width:108px; height:284px; background:url(/control/images/fb_leftbg.gif) no-repeat; }
#memfeedback .fb_left ul{ float:right;list-style:none;margin:12px 6px;color:#5c899e;font-weight:bold; line-height:24px;}

#memfeedback .fb_right{float:left;width:356px;height:284px; background:url(/control/images/fb_rightbg.gif) no-repeat #FFF;}
#memfeedback .fb_right ul{ list-style:none;margin:18px 0px 0px 15px; line-height:18px!important;}
#memfeedback .fb_right ul li{margin-bottom:6px;height:15px;}
#memfeedback .fb_right ul li img{ cursor:pointer;}
#memfeedback .fb_right textarea{ width:324px; height:156px; margin:0px 0px 10px 15px; border:1px solid #c7d9e9; font-family:"宋体";}
#memfeedback .fb_right input{ background:url(/images/button_go2.gif) no-repeat; height:29px; width:48px; text-align:center; color:#ffffff; font-weight:bold; border:none;cursor:pointer; margin:-7px -69px 0px 89px;}

#memfeedback .fb_shadowright{ float:left;width:1px; height:284px;}
#memfeedback .fb_shadowright img{ width:3px; height:284px;}

#memfeedback .fb_footer{width:468px; height:15px; background:url(/control/images/fb_footerbgCC.gif) no-repeat left;}
.navigator_bg {
background:#234F74 none repeat scroll 0%;
height:1000px;
filter:alpha(opacity=40);
opacity:0.4;
position:absolute;
width:100%;
}
<!-- background:#e2f1fe;-->