.Login_bkground {
   background-image: url('../images/back_desk.jpg');
   background-size:100%;
}

.Logo{
      background-image: url('../Content/opw/images/layout/logo-app-onetech.png');
    width: 450px;
    height: 100px;
    background-size: 100%;
    background-repeat: no-repeat;
}