chromium/third_party/blink/web_tests/external/wpt/css/css-viewport/zoom/reference/border-spacing-ref.html

<!DOCTYPE html>
<title>CSS zoom applies to border-spacing when specified and inherited</title>
<link rel="author" title="Stefan Zager" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-viewport/">

<style>
body {
  --scale: 1;
}
.table {
  display: table;
}
.row {
  display: table-row;
}
.cell {
  display: table-cell;
  border: calc(0.5rem * var(--scale)) solid hotpink;
  font-size: calc(1rem * var(--scale));
}
.spacing {
  border-collapse: separate;
  border-spacing: calc(17px * var(--scale)) calc(11px * var(--scale));
}
.zoom {
  --scale: 2;
}
</style>

<div class="table spacing">
  <div class="row">
    <div class="cell">unzoomed</div>
    <div class="cell">unzoomed</div>
  </div>
  <div class="row">
    <div class="cell">unzoomed</div>
    <div class="cell">unzoomed</div>
  </div>
</div>

<div class="table spacing zoom">
  <div class="row">
    <div class="cell">zoomed</div>
    <div class="cell">zoomed</div>
  </div>
  <div class="row">
    <div class="cell">zoomed</div>
    <div class="cell">zoomed</div>
  </div>
</div>

<div class="table spacing zoom">
  <div class="row">
    <div class="cell">zoomed inherited</div>
    <div class="cell">zoomed inherited</div>
  </div>
  <div class="row">
    <div class="cell">zoomed inherited</div>
    <div class="cell">zoomed inherited</div>
  </div>
</div>