ios - How to set edges to zero? -


i'm using auto-layout set subviews' leading equal superviews' leading , dose top , right. but, example, origin of white block in following image still equal 16.
i'm not familiar edges, how make origin start @ 0?
thank suggestion.

remove checkmark margins before add constraint, setting constraints margins, if remove checkmark needed results

enter image description here

updated

to fix existing constraint

enter image description here


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