body {
    /*background: url("/image/bg.jpg") no-repeat; */
    background-size:100%;
}
.input-group{margin:10px 0;}
.row {float: none; margin: 0 auto;}
.login_title{
    color:rgb(32,28,80);
    font-size: 42px;
    width:500px;
    margin:180px auto 0 auto;
    text-align: center;
}
.form_box{
    width:500px;
    height:400px;
    position: absolute;
    left: 50%;
    margin-left: -250px;
    margin-top:25px;
}
.login_form{
    width:350px;
    margin:0 auto;
    margin-top: 40px;
}
.login_form div{
    margin-bottom: 20px;
}
.form_title {
    text-align: center;
    padding-bottom: 15px; 
    color:#245580;
    border-bottom:1px solid #ddd;
}
.but_sure{
    /*margin-top: 40px;*/
}
i{
   color: #E4E4E4;;
}