Potty training question

Al

My daughter is 2 and she’s been pulling her diaper down constantly. She doesn’t even bother to try and rip the tabs off or anything just pulls them right down. She likes her panties a lot and knows what to do on the potty but she will not go on it at all. I let her watch me to teach her and she claps after I’m done and then squats down and pees on the floor. If I catch her peeing somewhere and put her on it she has a full blown tantrum trying to get down and tries to hit me and then runs away and pees somewhere on the floor again. Idk what to do because she won’t keep a diaper on and will not sit on the potty 😭🤦🏻‍♀️