Blitz - WPT: local-attachment-flex-column-reverse-scroll.html

wpt / css / css-backgrounds / local-attachment-flex-column-reverse-scroll.html

/css/css-backgrounds/local-attachment-flex-column-reverse-scroll.html

<!doctype html>
<html class="reftest-wait">
<title>CSS Backgrounds: local attachment with flex-direction: column-reverse scroll</title>
<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#the-background-attachment">
<link rel="match" href="local-attachment-flex-column-reverse-scroll-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<style>
.container {
  width: 100px;
  height: 100px;
  display: flex;
  flex-direction: column-reverse;
  overflow-y: auto;
  scrollbar-width: none;
  /* This is a multi-layered background for testing. */
  background:
    local linear-gradient(to bottom, yellow 50%, blue 50%) 0 0 / 100% 100% no-repeat,
    radial-gradient(farthest-side at 0 50%, rgba(0,0,0,0.2), transparent) 0 0 / 20px 100% no-repeat,
    radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,0.2), transparent) 100% 0 / 20px 100% no-repeat;
}
.content {
  width: 20px;
  height: 100px;
  flex-shrink: 0;
}
</style>
<div id="init_scrolled" class="container">
  <div class="content"></div>
  <div class="content"></div>
</div>
<div id="mid_scrolled" class="container">
  <div class="content"></div>
  <div class="content"></div>
</div>
<div id="max_scrolled" class="container">
  <div class="content"></div>
  <div class="content"></div>
</div>
<script>
  // In flex column-reverse setting, scrolling moves scrollTop towards negative values.
  mid_scrolled.scrollTop = -50;
  max_scrolled.scrollTop = -100;

  waitForAtLeastOneFrame().then(() => {
    takeScreenshot();
});
</script>
</html>

/css/css-backgrounds/local-attachment-flex-column-reverse-scroll-ref.html

<!doctype html>
<title>CSS Backgrounds: local attachment with flex-direction: column-reverse scroll - Reference</title>
<style>
.init_scrolled {
  width: 100px;
  height: 100px;
  overflow: hidden;
  background-color: blue;
}
.mid_scrolled {
  width: 100px;
  height: 100px;
  overflow: hidden;
  background-image: linear-gradient(to bottom, yellow 50%, blue 50%);
}
.max_scrolled {
  width: 100px;
  height: 100px;
  overflow: hidden;
  background-color: yellow;
}
</style>
<div class="init_scrolled">
</div>
<div class="mid_scrolled">
</div>
<div class="max_scrolled">
</div>