html {
    height: 100%;
}

body {
    height: 100%;
    margin: 0 auto;
    background-image: url('../images/StandardExpress-LogInScreen-BG.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

form {
    height: 100%;
}
.logintitle {
    font-family:Arial;
    font-size:20px;
    color:darkblue;
}
.loginarea {
    background-color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
}

.loginuser {
    height: 450px;
    float: left;
    width: 450px;
}

.loginuserbox {
    text-align: center;
}

.loginrowbox {
    height: 450px;
    float: left;
    width: 450px;
}

    .loginrowbox:after {
        content: "";
        display: table;
        clear: both;
    }

.devexcentered {
    margin: 0 auto;
    float: none !important;
    display: table;
}

@media screen and (max-width: 900px) {
    .loginuser {
        width: 100%;
    }

    .loginrowbox {
        width: 100%;
    }
}