Blitz - WPT: clip-border-area-border-shape-background-position.html

wpt / css / css-backgrounds / background-clip / clip-border-area-border-shape-background-position.html

/css/css-backgrounds/background-clip/clip-border-area-border-shape-background-position.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Backgrounds Test: background-clip:border-area positioning is unchanged by an identity border-shape inset</title>
<link rel="author" title="Jason Leo" href="mailto:cgqaq@chromium.org">
<link rel="author" title="一丝" href="mailto:yiorsi@gmail.com">
<link rel="help" href="https://drafts.csswg.org/css-backgrounds-4/#background-clip">
<link rel="help" href="https://drafts.csswg.org/css-borders-4/#border-shape">
<link rel="match" href="clip-border-area-border-shape-background-position-ref.html">
<meta name="assert" content="An identity border-shape inset(0) matching the border box must not alter the background positioning area. background-origin and background-position must produce the same painted result as if no border-shape were set.">
<style>
  .test {
    display: inline-block;
    vertical-align: top;
    margin: 30px;
    box-sizing: border-box;
    border: 10px solid transparent;
    background-repeat: no-repeat;
    background-origin: border-box;
    background-clip: border-area;
    border-shape: inset(0);
  }
  .t1 {
    width: 200px;
    height: 100px;
    background-position: 100px 0px;
    background-image: linear-gradient(to right, green 100px, red 100px);
  }
  .t2 {
    width: 100px;
    height: 200px;
    background-position: 0px -100px;
    background-image: linear-gradient(to bottom, red 100px, green 100px);
  }
  .t3 {
    width: 200px;
    height: 100px;
    background-position-x: right 100px;
    background-image: linear-gradient(to right, red 100px, green 100px);
  }
  .t4 {
    width: 100px;
    height: 200px;
    background-position-y: bottom 100px;
    background-image: linear-gradient(to bottom, red 100px, green 100px);
  }
</style>
<div class="test t1"></div>
<div class="test t2"></div>
<div class="test t3"></div>
<div class="test t4"></div>

/css/css-backgrounds/background-clip/clip-border-area-border-shape-background-position-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<style>
  .test {
    display: inline-block;
    vertical-align: top;
    margin: 30px;
    position: relative;
  }
  .test:after {
    content: '';
    position: absolute;
    inset: 10px;
    background: white;
  }
  .t1 {
    width: 200px;
    height: 100px;
    background-image: linear-gradient(to right, transparent 100px, green 100px);
  }
  .t2 {
    width: 100px;
    height: 200px;
    background-image: linear-gradient(to bottom, green 100px, transparent 100px);
  }
  .t3 {
    width: 200px;
    height: 100px;
    background-image: linear-gradient(to right, green 100px, transparent 100px);
  }
  .t4 {
    width: 100px;
    height: 200px;
    background-image: linear-gradient(to bottom, green 100px, transparent 100px);
  }
</style>
<div class="test t1"></div>
<div class="test t2"></div>
<div class="test t3"></div>
<div class="test t4"></div>