Your First iOS and UIKit App · Styling with Buttons and Sliders |

This is a companion discussion topic for the original entry at
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Hi Teacher,

I have a question about
let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right:14)
When I change the number to 3 or 25, the slider bar turns out to be a weird shape.
Can you help to explain how to get the number → 14 ?

Thank you!