Blitz - WPT: text-box-trim-accumulation-004.html

wpt / css / css-inline / text-box-trim / text-box-trim-accumulation-004.html

/css/css-inline/text-box-trim/text-box-trim-accumulation-004.html

<!DOCTYPE html>
<title>Test trimming both sides of the inline content</title>
<link rel="help" href="https://drafts.csswg.org/css-inline-3/#text-box-trim">
<link rel="help" href="https://drafts.csswg.org/css-inline-3/#text-box-edge">
<meta name="assert"
      content="text-box-trim values set by multiple ancestors accumulate instead
               of overwrite each other. Note that the first inner box is not the last
               formatted line for trim-end."
>
<link rel="match" href="text-box-trim-accumulation-004-ref.html">
<link rel="stylesheet" href="/fonts/baseline-diagnostic/baseline-diagnostic-font.css">
<meta charset="utf-8">
<style>
.spacer {
  block-size: 100px;
  background: lightgray;
}

.outer {
  text-box-trim: trim-end;
  text-box-edge: ex alphabetic;
}

.middle {
  text-box-trim: trim-start;
  text-box-edge: ex alphabetic;
}

.inner {
  font: 100px/1 BaselineDiagnosticAlphabeticZero;
}
</style>
<div class="spacer"></div>
<div class="outer">
  <div class="middle">
    <div class="inner">█BxIF</div>
  </div>
  <div class="spacer"></div>
  <div class="inner">█BxIF</div>
</div>
<div class="spacer"></div>

/css/css-inline/text-box-trim/text-box-trim-accumulation-004-ref.html

<!DOCTYPE html>
<link rel="stylesheet" href="/fonts/baseline-diagnostic/baseline-diagnostic-font.css">
<meta charset="utf-8">
<style>
body {
  font: 100px/1 BaselineDiagnosticAlphabeticZero;
}
.spacer {
  background: lightgray;
  block-size: 100px;
}
.target-first {
  margin-block-start: calc(-1em * var(--baseline-diagnostic-alphabetic-zero-x-height));
  margin-block-end: 0px;
}
.target-second {
  margin-block-start: 0px;
  margin-block-end: calc(-1em * (1 - var(--baseline-diagnostic-alphabetic-zero-alphabetic)));
}
</style>
<div class="spacer"></div>
<div class="target-first">█BxIF</div>
<div class="spacer"></div>
<div class="target-second">█BxIF</div>
<div class="spacer"></div>