body {
    min-height: 100vh;
    background-color: #337ab7;
}

.login-form {
    margin-top: 50vh;
    padding: 20px 30px;
    background-color: #ffffff;
    color: #337ab7;

    transform: translateY(-50%);
}

.login-form h1 {
    margin: 0 0 5px;
}

.login-form h2 {
    margin: 0 0 30px;
    font-size: 1em;
}

.img-responsive.logo-login {
    margin: 0 auto;
    width: 50%;
}