body{
    background: url('../images/bk.jpg') no-repeat;
    background-size: cover;
}

.cb-container{
    width: 400px;
    height: 500px;
    position: fixed;
    top: 50%;
    left: 50%;
    margin-top: -250px;
    margin-left: -200px;
    box-shadow: 1px 0px 10px #fff;
    border-radius: 15px;
    padding:50px 40px;
    box-sizing: border-box;
    background-color: #fff;
}

.cb-title{
    width: 100%;
    text-align: center;
}

.cb-title strong{
    color: orange;
}

.cb-title span{
    color: #0069d9;
}

.cb-container form{
    margin-top: 40px;
}

.cb-login-btn{
    width: 100%;
    margin-top: 15px;
}