createCanvas(400, 400);

}

​

function draw() {

  background(0);

  strokeWeight(5);

  stroke(50);

  rectMode(CENTER);

  noFill();

  if ((mouseX>50)&&(mouseX<350)&&(mouseY>100)&&(mouseY<300)) {

    fill(255,0,0);

  }

  dist(mouseX,mouseY,)

  rect(width/2,height/2,300,200);

}