After the update, the checkout page became vertical, not horizontal

After the update, the checkout page became vertical, not horizontal
Before the update, the checkout page was two-sided
Enter address, product, shipping and payment data on the desktop screen
Now after the update, they are all full length
Meaning, you need to scroll down to see the rest of the data
Please solve the problem

This is a demo page to watch and see what the error is before updating
https://test.check-com.com/checkout/

Look at the checkout page, how organized it is

Now after the update, I see how miserable it is
In the actual location after the update
https://check-com.com/checkout/