<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>CSS Reference: Inlinize block-level boxes inside ruby</title>
  <link rel="author" title="Xidorn Quan" href="mailto:quanxunzhen@gmail.com">
  <link rel="stylesheet" href="support/ruby-common.css">
  <style>
    .inline {
      display: inline-block;
      background-color: yellow;
      width: 30px; height: 30px;
    }
  </style>
</head>
<body>
  <div><ruby>a<div class="inline">b</div>c</ruby></div>
  <div><rb>a<div class="inline">b</