<!
DOCTYPE HTML>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<
html><
head>
<
meta charset=
"utf-8">
<
title>Reference: splitting vertical writing-mode blocks</
title>
<
link rel=
"author" title=
"Mats Palmgren" href=
"https://bugzilla.mozilla.org/show_bug.cgi?id=1328095">
<
style type=
"text/css">
body,
html { padding:
30px; margin:
0; }
.
col {
columns:
2;
column-gap:
0;
column-fill: auto;
block-size:
90px;
inline-size:
140px;
border:
1px solid;
}
.vl { writing-mode: vertical-lr; }
x {
display:block;
break-inside:avoid;
page-break-inside:avoid;
vertical-align: top;
inline-size:
20px;
block-size:
20px;
background:silver;
}
x:nth-of-type(
2n) {background:purple;}
blue { display:block; inline-size:
70px; border-block-start:
25px solid blue; }
grey { display:block; inline-size:
70px; border-block-start:
17px solid grey; }
</
style>
</
head>
<
body>
<
div class=
"col vl">
<
div class=
"inner" style=
"margin-left:40px"></
div>
<blue></blue>
<x></x><x></x>
<grey></grey>
</
div>
<
div class=
"col">
<
div class=
"inner" style=
"margin-top:40px"></
div>
<blue></blue>
<x></x><x></x>
<grey></grey>
</
div>
<
div class=
"col vl">
<
div class=
"inner" style=
"margin-left:40px"></
div>
<blue></blue>
<x></x><x></x>
<
div style=
"width:45px"></
div>
<grey></grey>
</
div>
<
div class=
"col vl">
<
div class=
"inner" style=
"margin-left:40px"></
div>
<blue></blue>
<x></x><x></x>
<
div style=
"width:60px"></
div>
<grey></grey>
</
div>
</
body>
</
html>