testing/web-platform/tests/css/filter-effects/backdrop-filter-clip-rect-2.html


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<!DOCTYPE html>
<meta charset="utf-8">
<title>backdrop-filter: Clip the filter at border box of element</title>
<link rel="author" href="mailto:Hironori.Fujii@sony.com">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
<link rel="match"  href="reference/backdrop-filter-clip-rect-2-ref.html">
<meta name="fuzzy" content="maxDifference=0-80; totalPixels=0-1000" />
<style>
.box {
  display: inline-block;
  box-sizing: border-box;
  width: 100px;
  height: 100px;
  border-radius: 10px 20px 30px 40px;
  border-width: 10px;
}
.no-bf > .box {
  background: black;
}
.bf > .box {
  border-color: transparent;
  backdrop-filter: invert(1);
}
</style>
<div>
  <p>Expected: Same size rounded black boxes.</p>
</div>

<div class="no-bf">
  <div class="box"></div>
  <div class="box"></div>
  <div class="box"></div>
</div>
<div class="bf">
  <div class="box" style="border-style:none"></div>
  <div class="box" style="border-style:solid"></div>
  <div class="box" style="border-style:dotted"></div>
</div>