body{overflow:hidden;}
.login_background{ width:100%; height:100%; position:absolute; left:0; top:0; z-index:90; background-color:rgba(0,0,0,0.5); }
.login{ height:200px;width:260px;padding: 20px;background-color:rgba(0,0,0,0.5);border-radius: 4px;position:absolute;left: 50%;top: 50%; margin:-150px 0 0 -150px;z-index:99;}
.login h1{ text-align:center; color:#fff; font-size:24px; margin-bottom:20px; }
.form_code{ position:relative; }
.form_code .code{ position:absolute; right:0; top:1px; cursor:pointer; }
.login_btn{ width:100%; }
.qrcodelogin_btn{float:right;background-color: #2E6EF2;height:32px;line-height:32px;}
#qrcodelogin_box{
    display:none;
    margin:0 auto;
    width:180px;
    height:200px;
    background:#FFFFFF;
    position:relative;
}
#qrcode_image{
    width:180px;
    height:180px;
    background:#FFFFFF no-repeat center center;
    background-size:100% 100%;
}
#countdown{
    text-align:center;
    height:20px;
    line-height:20px;
}
#zt{
    display:none;
    text-align:center;
    height:20px;
    line-height:20px;
}
#qrcodelogin_box .fa{position: absolute;top:0;left:-20px;color:#FFFFFF;font-size:16px;cursor: pointer;}