@media(max-width: 550px) {
    body {
        font-size: 3vw;
    }

    h1 {
        margin-top: 5px;
        margin-bottom: 5px;
        text-align: center;
        font-size: 4vw;
    }

    .btn {
        font-size: 3vw;
    }

    .form-control {
        font-size: 3vw;
    }
}

@media(min-width: 551px){
    h1 {
        margin-top: 5px;
        margin-bottom: 5px;
        text-align: center;
        font-size: 18pt;
    }
}


.main-panel {
    height: 100%;
}

.main-panel .row {
    margin-top: 5px;
    margin-bottom: 5px;
}

.main-panel .main-row {
    margin-top: 50px;
    height: 100%;
}

.login-panel {
    display: flex;
    flex-direction: column;
    /* align-items: center; */
    max-width: 550px;
    height: 100%;
    box-shadow: 0 0 20px #b3b3b3;
    padding: 20px 20px;
}


.login-panel .login-form input {
    border: 0;
    border-bottom: 1px solid gray;
    border-radius: 0;
    text-align: center;
}

.login-panel .login-form input:focus, .login-panel .login-form input:active, .login-panel .login-form input:hover {
    outline: none;
    box-shadow: none;
}

.login-panel .login-form .btn.btn-primary {
    margin-top: 40px;
    text-transform: uppercase;
    border-radius: 0;
}

.login-panel .login-response {
    max-height: 0;
    width: 100%;
    transition: max-height .4s ease;
}

/* .login-panel .login-response.has-error {
    max-height: 100px;
} */