1. Click anywhere in the pixel box where you want to add your pixel.
2. Follow instruction on screen. Then, click submit.
3. If you do not have website but you have Facebook Profile, Group, or Page, use that as your URL e.g. if you have Facebook Page reachable at: https://www.facebook.com/askingnow , copy and paste https://www.facebook.com/askingnow into URL field.
4. If you do not have any image, download a pixel here and upload it.