I am designing filter interface that is located at the bottom of the screen of a smartphone.
I do not know if it's better to leave some space between the buttons (see the top of the attached image - preflop action), or leave the buttons without spacing/border (see bottom of the attached image - preflop position)
Is one button being selected enough indication of where a user is supposed to click to change the option, or is additional spacing needed?
Some additional info:
- One of the options is always selected
- Only one of the options can be selected
- Hover to show button borders does not work since this is targeting smart phones and tablets