<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-align-3/#baseline-rules">
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#column-align">
<style>
#target {
display: grid;
grid-auto-flow: column;
align-items: last baseline;
width: 200px;
border: solid 3px;
position: relative;
writing-mode: vertical-lr;
}
#target > :nth-child(1) {
background: lime;
margin-right: 20px;
padding-right: 20px;
font-size: 20px;
line-height: 20px;
align-self: first baseline;
writing-mode: vertical-rl;
}
#target > :nth-child(2) {
background: hotpink;
font-size: 30px;
line-height: 30px;
writing-mode: vertical-lr;
}
#target > :nth-child(3) {
background: papayawhip;
font-size: 16px;
line-height: 16px;
writing-mode: vertical-lr;
}
#target > :nth-child(4) {
background: orange;
margin-left: 20px;
padding-left: 20px;
font-size: 20px;
line-height: 20px;
align-self: first baseline;
writing-mode: vertical-lr;
}
#target > :nth-child(5) {
background: cyan;
font-size: 30px;
line-height: 30px;
writing-mode: vertical-rl;
}
#target > :nth-child(6) {
background: papayawhip;
font-size: 16px;
line-height: 16px;
writing-mode: vertical-rl;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<body onload="checkLayout('#target > div')">
<div id="target">
<div data-offset-x="120">line1<br>line2</div>
<div data-offset-x="105">line1<br>line2</div>
<div data-offset-x="126">line1<br>line2</div>
<div data-offset-x="20">line1<br>line2</div>
<div data-offset-x="35">line1<br>line2</div>
<div data-offset-x="42">line1<br>line2</div>
</div>