.mt-n19 {
    margin-top: -13rem !important;
}

.login-block {
    position: relative;
    /*    width: 80%;
*/ padding: 30px;
    background: #fff;
    border-radius: 5px;
    min-height: 510px;
    border-top: 5px solid #54a6d5;
    margin: 0 auto;
    box-shadow: 0 0 12px 0 rgba(0, 0, 0, 0.12);
}