​

function setup() {

  createCanvas(400, 400);

  x = 0.17* width;

  y = 0.34* height;

  w = 0.83 * width;

  h = 0.12 * height;

}

function draw() {

  background(220);

  line(x,h,w,h);

  line(w,h,w,y);

  line(w,y,x,y);

  line(x,y,x,h);

}