even my diet is good even if workout. I can't do the "last line" on my abs.I mean up to the belly button.I do much workouts -strenth etc.As a result I think I do something wrong.Which workouts at home are proper for this line?thanks a lot
Assuming you do have an ability to get that line ( not everyone does ), you need to cut weight, like bodybuilders do. This can potentially involve serious carb cutting, HIIT like workouts, and strategically placed "cheat meals".
Research some cutting programs and try to follow one of them that doesn't seem "too crazy". Note that, your strength will probably take a dive.