title: Where do computed styles for width and height come from when they aren't listed in my css
body: <p>Obviously I can open display and it will tell me exactly where these are listed, but where do the fields with no arrow (in this case height and width) come from? afaik these values are not listed anywhere in my css. Is this clientWidth and clientHeight? </p>
  
  <p><img src="https://i.stack.imgur.com/Az8ju.jpg" alt="enter image description here"></p>