Email layout difference

Hi,

The email layout seems different from what they should look in real envirenment.

For example, when it looks good in editor in mobile version: https://prnt.sc/oqAE68lLntP-

It looks no good on real mobile screen: https://prnt.sc/neDERWAFhrVO

If I make the button and text inside the button to be smaller, then it looks too small in desktop version.

Is there any better solution to make both of them good?

Thank you.