Image Size and button size always 100% of screen width on mobile

Hey guys, whenever I open the created emails on my iPhone, all of the images (for example product pictures) are taking up the full width of the email The same goes for buttons. Even though I change the product picture size to a certain width, this reflects only on desktop and for mobile, everything’s stays the same, no matter what size I set the images to. Buttons, that are only 60px wide on desktop also automatically fill up the whole email’s width on my phone.

Please help to fix this. I do not want every image or button to be full width without being able to change that.