html, body
{
    margin:0px;
    padding:0px;
}

.login-page, .register-page {
    -ms-flex-align: center;
    align-items: center;
    background: #e9ecef;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    height:100vh;
    -ms-flex-pack: center;
    justify-content: center;
}

.login-box, .register-box {
    width: 420px;
    background-color:darkslategrey
}

.login-logo, .register-logo {
    font-size: 2.1rem;
    font-weight: 300;
    margin-bottom: .9rem;
    text-align: center;
}

.card {
    box-shadow: 0 0 1px rgb(0 0 0 / 13%), 0 1px 1px rgb(0 0 0 / 20%);
    margin-bottom: 1rem;
    position: relative;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: black;
    background-clip: border-box;
    border: 0 solid rgba(0,0,0,.125);
    border-radius: .25rem;
}

.login-card-body, .register-card-body {
    background: #fff;
    border-top: 0;
    color: #666;
    padding: 20px;
}

.mb-1, .my-1 {
    margin-bottom: .25rem !important;
}