<!doctype html>
<link rel="help" href="https://drafts.csswg.org/css-ui/#outline-offset">
<link rel="help" href="https://crbug.com/1301077">
<style>
#target {
  width: 100px;
  height: 10px;
  border-radius: 10px;
  outline: 20px solid green;
  outline-offset: -200px;
</style>
<div id="target"></div>
