chromium/third_party/blink/web_tests/external/wpt/css/css-ui/outline-003.html

<!doctype html>
<html lang=en>
  <meta charset=utf-8>
  <title>CSS-UI test: outline & layout</title>
  <link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net">
  <meta name=flags content="">
  <meta name=assert content="Outline does not influence size or position, and has no impact on layout.">
  <link rel=help href="https://drafts.csswg.org/css-ui-3/#outline-props">
  <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<style>
div {
  background: red;
  width: 100px;
  height: 100px;
}
span:nth-of-type(1) {
  float: left;
  width: 30px;
  height: 30px;
  outline: solid 10px green;
  background: green;

  position: relative;
  top: 10px;
  left: 10px;
}
span:nth-of-type(2) {
  float: left;
  width: 0;
  height: 0;
  outline: solid 25px green;
  background: red;

  position: relative;
  top: 25px;
  left: 45px;
}
span:nth-of-type(3) {
  float: left;
  clear: left;
  width: 100px;
  height: 50px;
  background: green;

  position: relative;
  top: 20px;
}
</style>

  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
  <div><span></span><span></span><span></span></div>