body {
    margin: 0 auto;
    background-image: url('../img/login_bg.jpg') !important;
    background-position: center;
}

.btn-primary {
    color: #fff;
    background-color: #7a70ba !important;
    border-color: #7a70ba !important;
}
.color-primary {
    color: #7a70ba !important;
}