<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-ruby-1/#rubypos">
<link rel="help" href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/br#deprecated_attributes">
<style>
  #float {
    float: left;
    width: 100px;
    height: 100px;
    background: cyan;
  }
  #container {
    padding-bottom: 50px;
    line-height: 20px;
    background: yellow;
  }
  ruby {
    ruby-position: under;
  }
  ruby > 