html,
body {
    height: 100%;
}

body {
    display: -ms-flexbox;
    display: -webkit-box;
    display: flex;
    -ms-flex-align: center;
    -ms-flex-pack: center;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    padding-top: 40px;
    padding-bottom: 40px;
    background-color: #242424;
    text-align: center;
    color: #fff;
}

.btn-orange {
    color: #fff;
    background-color: #ff8800;
    border-color: #ff8800;
}

/* ALERTS */
ul.alert-list {
    padding-left: 0;
}

li.alert {
    list-style-type: none;
    text-align: left;
    margin-bottom: 0.5rem;
    border: 0;
    border-radius: 0;
}

.alert-danger {
    background-color: #ac0000;
    color: #fff;
}

/* FORM */
.form-signin {
    width: 100%;
    max-width: 330px;
    padding: 15px;
    margin: 0 auto;
}

.form-signin .form-control {
    position: relative;
    box-sizing: border-box;
    height: auto;
    padding: 10px;
    font-size: 16px;
    border-radius: 0;
    border: none;
    margin-bottom: 10px;
}

.form-signin button {
    border: none;
    border-radius: 0;
}

.invalid-feedback {
    display: block;
    margin-top: 0;
    text-align: left;
}
.invalid-feedback:last-of-type {
    margin-bottom: 10px;
}

.form-control.is-invalid {
    background-color: rgba(255,80,80,0.8);
    margin-bottom: 5px;
}