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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Flexbox Test: gap - horizontal with LR vertical writing mode</title>
<link rel="author" title="Adam Argyle" href="mailto:argyle@google.com">
<style>
body {
writing-mode: vertical-lr;
}
section {
background-color: green;
block-size: 100px;
display: flex;
}
section > div{
background-color: grey;
flex: 1 1 auto;
}
section > div:not(:first-child) {
margin-inline-start: 20px;
}
</style>
<body>
<p>Test passes if there is <strong>a green line between boxes</strong>.</p>
<section>
<div></div>
<div></div>
<div></div>
</section>
</body>