.login-box {
    position: absolute;
    top: 35%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50mm;
    margin: auto;
    background-color: var(--background-body);
    border-radius: 5mm;
    z-index: 100;
}

.login-box fieldset {
    padding: 5mm;
}

.login-box h2 {
    margin-top: 0px;
}

.login-box button {
    float: right;
}