body {margin:0px;pading:0px;height: 100%;min-width:900px;font-family: arial;  
      background:url('../img/bg.jpg') top center no-repeat #000000;text-align:center;}
.wrapper{position:relative;width:900px;height:600px;margin-left:auto;margin-right:auto;}
.wrapper .desc{position:absolute;top:450px;left:75px;width:750px;font-size:16px;line-height:20px;text-align:center;color:#ffffff;}

.choose{position:absolute;top:130px;left:410px;}
.logo{position:absolute;top:130px;left:100px;}

.btn{display:block;position:absolute;width:339px;height:55px;color:#000000;font-size:25px;font-weight:bold;line-height:55px;text-decoration:none;}
.btn_act{top:190px;left:440px;background:url(../img/btn_act.png) left top no-repeat;}
.btn_act_2{top:270px;left:440px;background:url(../img/btn_act.png) left top no-repeat;}
.btn_act_3{top:350px;left:440px;background:url(../img/btn_act.png) left top no-repeat;}
.btn_act:hover,.btn_act_2:hover{background-position:right top;}
.btn_deact{top:270px;left:440px;background:url(../img/btn_deact.png) left top no-repeat;}

.en_construction{position:absolute;top:270px;left:740px;height:39px;width:300px;background:url(../img/arrow.png) left top no-repeat; font-size:14px; line-height:18px; color:#ffffff;}
.en_construction span{color:#f37f26;}