<ruby xml:lang="zh-Hant" style="ruby-position: under;">
    <rbc>
        <rb>馬</rb><rp>(</rp><rt>mǎ</rt><rp>)</rp>
        <rb>來</rb><rp>(</rp><rt>lái</rt><rp>)</rp>
        <rb>西</rb><rp>(</rp><rt>xī</rt><rp>)</rp>
        <rb>亞</rb><rp>(</rp><rt>yà</rt><rp>)</rp>
    </rbc>
    <rtc xml:lang="en" style="ruby-position: over;">
        <rp>(</rp><rt>Malaysia</rt><rp>)</rp>
    </rtc>
</ruby>

ruby {
  font-size: 2em;
}