body{
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    background-color: #363636;
}

.login-form {
    background: rgba(255, 255, 255, 0.78);
    padding-bottom: 16px;
    max-width: 90%;
    top: 50%;
    transform: translate(5.5%,-50%);
    position: absolute;
    border-radius: 10px;
}

.login-form > h3,h4 {
    text-align: center;
}

.btn-login-form {
    margin-top: 16px;
}

.mensagem-usuarios {
    font-weight: 700;
    text-align: center;
}

.mensagem-usuarios p {
    margin-top: 16px;
}

.logotipo-sistema {
    max-height: 50%;
    max-width: 50%;
    display: block;
    margin-left: auto;
    margin-right: auto;
}