Hello Olga,
I changed the .mpc-row settings and return max-width: 100% and everything returned to normal, but still I have a problem with width of order page:
https://gry4you.com/wp-content/uploads/2018/03/order_page_width1.jpg
https://gry4you.com/wp-content/uploads/2018/03/order_page_width2.jpg
https://gry4you.com/wp-content/uploads/2018/03/order_page_width3.jpg
I don’t know how to change size of order page.
I will try to find settings to change “Your order” and “Payment” on order page:
https://gry4you.com/wp-content/uploads/2018/03/your_order_1.1.jpg
https://gry4you.com/wp-content/uploads/2018/03/your_order_2.jpg
I would like add css code to change settings:
text-transform: uppercase;
font-size: 16px;
Regards
Damian