odoo/addons/auth_signup/static/src/css/base.css

@charset "utf-8";
.openerp .oe_login .oe_signup_show {
  display: none;
}
.openerp .oe_login_signup .oe_signup_show {
  display: block !important;
}
.openerp .oe_login_signup .oe_signup_hide {
  display: none;
}