style-night.css

body {
    background: #111115;
    color: white;
    margin: 50px 20%;
    font-family: monospace;
}

.message {
    background-color: #123;
    padding: 10px;
    margin-bottom:14px;
    border-radius: 10px;
}

.time {
    font: 12px;
    float: right;
    font-weight: 100;
}

.login {
    font-weight: 800;
    font-size: 12px;
    color: #5577dd;
}

.message-text {
    margin: 2px;
    font-size: 14px;
    font-weight: 800;
}

input[type='text'] {
    width: 100%;
    float: left;
    width: 89%;
    padding: 5px;
}

input[type='submit'] {
    float: right;
    width: 10%;
    padding: 5px;
}

.login_form {
    width: 60%;
    margin: auto;
}

.login_form input {
    float: none;
    margin: 5px 0;
}

.login_form label {
    display: block;
    margin: 5px;
}