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<body>
  <div class="flip3D">
    <div class="back"><h3>Moscow</h3></div>
    <div class="front"><div class="chinese_long"><h1>莫斯科</h1></div><div class="pinyin_long"><h3>mò&thinsp;sī&thinsp;kē</h3></div></div>
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  <div class="flip3D">
    <div class="back"><h3>London</h3></div>
    <div class="front"><div class="chinese"><h1>伦敦</h1></div><div class="pinyin"><h3>lún&thinsp;dūn</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>Berlin</h3></div>
    <div class="front"><div class="chinese"><h1>柏林</h1></div><div class="pinyin"><h3>bó&thinsp;lín</h3></div></div>
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  <div class="flip3D">
    <div class="back"><h3>Beijing</h3></div>
    <div class="front"><div class="chinese"><h1>北京</h1></div><div class="pinyin"><h3>běi&thinsp;jīng</h3></div></div>
  </div>

  <div class="flip3D">
    <div class="back"><h3>Shanghai</h3></div>
    <div class="front"><div class="chinese"><h1>上海</h1></div><div class="pinyin"><h3>shàng&thinsp;hǎi</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>Rome</h3></div>
    <div class="front"><div class="chinese"><h1>罗马</h1></div><div class="pinyin"><h3>luó&thinsp;mǎ</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>Paris</h3></div>
    <div class="front"><div class="chinese"><h1>巴黎</h1></div><div class="pinyin"><h3>bā&thinsp;lí</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>New York</h3></div>
    <div class="front"><div class="chinese"><h1>纽约</h1></div><div class="pinyin"><h3>niǔ&thinsp;yuē</h3></div></div>
  </div>

  <div class="flip3D">
    <div class="back"><h3>Tokyo</h3></div>
    <div class="front"><div class="chinese"><h1>东京</h1></div><div class="pinyin"><h3>dōng&thinsp;jīng</h3></div></div>
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