<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#flex-baselines">
<style>
.target {
display: flex;
position: relative;
line-height: 0;
font-size: 20px;
inline-size: 200px;
margin-block: 10px;
padding: 10px;
border: solid 3px;
writing-mode: vertical-rl;
}
.inner {
display: flex;
border: solid 5px;
padding: 10px;
gap: 10px;
}
span {
display: inline-block;
width: 1em;
height: 1em;
outline: solid cyan 3px;
outline-offset: -3px;
}
</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 class="target" style="align-items: first baseline;">
<div data-offset-x="110"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: first baseline;">
<div data-offset-x="110"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: first baseline;">
<div data-offset-x="105"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap-reverse;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: first baseline;">
<div data-offset-x="105"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap-reverse;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: last baseline;">
<div data-offset-x="45"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: last baseline;">
<div data-offset-x="45"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: last baseline;">
<div data-offset-x="40"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap-reverse;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: first baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>
<div class="target" style="align-items: last baseline;">
<div data-offset-x="40"><span></span></div>
<div class="inner" style="inline-size: 140px; flex-wrap: wrap-reverse;" data-offset-x="10">
<div style="font-size: 10px;"><span></span></div>
<div style="font-size: 30px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 50px;"><span></span></div>
<div style="font-size: 60px;"><span></span></div>
<div style="font-size: 40px; margin-block: 10px; align-self: last baseline;"><span></span></div>
<div style="font-size: 20px;"><span></span></div>
</div>
</div>