text-box-trim-half-leading-block-box-003.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-inline/text-box-trim/text-box-trim-half-leading-block-box-003.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>text-box-trim should only be applied on the first/last formatted line</title>

<link rel="help" href="https://drafts.csswg.org/css-inline-3/#text-box-trim">

<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#first-formatted-line">

<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />

<link rel="match" href="text-box-trim-half-leading-block-box-003-ref.html">

<style>

.div-parent {

  outline: 1px solid orange;

  font: 20px/3 Ahem;

  text-box-trim: trim-both;

  text-box-edge: text;

span {

  border-block: solid red;

</style>

<!-- The SPANs here will be wrapped inside anonymous blocks. #div-parent will

     thus start with an anonymous block (for the first SPAN). When looking for a

     first formatted line, it will have to be inside this anonymous block (or it

     doesn't exist at all).

     To quote the spec:

     The first formatted line of a block container [...] that contains

     block-level content [...] is the first formatted line of its first in-flow

     block-level child. If no such line exists, it has no first formatted

     line. -->

<div class="div-parent">

  <span>    </span>

  <div>Testline1<br>Testline2<br>Testline3</div>

  <span>	</span>

</div>