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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="common.css">
<script type="text/javascript" src="utils.js"></script>
</head>
<body style="line-height: 10">
<ruby>
<rb>base1</rb>
<rb><div></div></rb>
<rb>base3</rb>
<rtc>
<rt></rt>
<rt style="margin: 22px 0;"><div id="rtblock" style="width: 256px; text-align:center; background: silver; padding: 2px; border: 4px solid gray; outline: 8px solid black; margin: 16px;"><span id="inline">text1</span></div></rt>
<!-- margin: 22px = margin: 16px + padding: 2px + border: 4px -->
<!-- width: 256px = 300px - 2 * (padding: 2px + border: 4px + margin: 16px) -->
</rtc>
</ruby>
<script type="text/javascript">
// normal height of an one-line inline-block is the line-height,
// we need to adjust it to the height of the inline box to simulate
// the ruby text box.
makeBSizeMatchInlineBox(document.getElementById('rtblock'),
document.getElementById('inline'));
</script>
</body>
</html>