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Test Info:

<!DOCTYPE html>
<html>
<head>
<style>
HTML {
flex-direction: column;
}
EMBED {
inline-size: min-content;
width: 621490006%;
}
HTML {
display: inline-flex !important;
}
* {
aspect-ratio: 2044245302.5699975 / 2382682379.6661625;
writing-mode: vertical-lr;
}
</style>
<script>
document.addEventListener('DOMContentLoaded', () => {
const embed = document.createElement('embed')
document.documentElement.appendChild(embed)
})
</script>
</head>
</html>