mozilla-release/layout/reftests/text-decoration/vertical-mode-decorations-1-ref.html

<!DOCTYPE html>
<head>
<meta charset=utf-8>
<style>
body { font: 32px Arial, sans-serif; margin: 20px; color: transparent; }
div { block-size: 10em; inline-size: 10em; margin: 0; padding: 10px;
      text-align: center; background: #eee; }
.a { text-decoration: blue solid underline line-through overline; }
.c { text-decoration: green double underline line-through overline; }
</style>
</head>
<body>
<div style="transform: rotate(90deg);">
  hello <span class=a>hello</span> <span class=c>hello</span>
</div>