easyappointments/assets/css/layouts/account_layout.scss

/* ----------------------------------------------------------------------------
 * Easy!Appointments - Online Appointment Scheduler
 *
 * @package     EasyAppointments
 * @author      A.Tselegidis <alextselegidis@gmail.com>
 * @copyright   Copyright (c) Alex Tselegidis
 * @license     https://opensource.org/licenses/GPL-3.0 - GPLv3
 * @link        https://easyappointments.org
 * @since       v1.5.0
 * ---------------------------------------------------------------------------- */

body {
    width: 100vw;
    height: 100vh;
    display: table-cell;
    vertical-align: middle;
}

#login-frame {
    width: 630px;
    margin: auto;
    border: 1px solid #dddada;
    padding: 70px;
}

@media (max-width: 640px) {
    #login-frame {
        width: 100%;
        padding: 20px;
    }
}