How to fix the form layout problem when scaling?

Question

css

At 200% scale, the button becomes slightly lower than the input field. Link to the site - ablethink.ru - subscription form in the footer. At other scales everything seems to be fine. I watched from Chrome and yandex browsers, and in firefox the button is generally crooked even at normal scales. Why is this happening and how to fix it?

Answer 1

Solved the problem: Set vertical-align: top for the .subinfooter-field class. The topic can be considered closed.