.login-img {
    max-width: 80%;
    margin: 0 auto;
    display: block;
}

.btn-primary {
    background-color: #343A40;
    border-color: #343A40;
    color: #fff;
}

.btn-primary:hover, .btn-primary:active {
    background-color: #484c51 !important;
}

.login-box .card-header {
    padding: 20px 50px;
}