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<body>
  <div class="flip3D">
    <div class="back"><h3>car</h3></div>
    <div class="front"><div class="chinese"><h1>汽车</h1></div><div class="pinyin"><h3>qì&thinsp;chē</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>bus</h3></div>
    <div class="front"><div class="chinese_xlong"><h1>公共汽车</h1></div><div class="pinyin_xxlong"><h3>gōng&thinsp;gòng<br/>qì&thinsp;chē</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>bicycle</h3></div>
    <div class="front"><div class="chinese_long"><h1>自行车</h1></div><div class="pinyin_long"><h3>zì&thinsp;xíng&thinsp;chē</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>airplane</h3></div>
    <div class="front"><div class="chinese"><h1>飞机</h1></div><div class="pinyin"><h3>fēi&thinsp;jī</h3></div></div>
  </div>

  <div class="flip3D">
    <div class="back"><h3>train</h3></div>
    <div class="front"><div class="chinese"><h1>火车</h1></div><div class="pinyin"><h3>huǒ&thinsp;chē</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>taxi</h3></div>
    <div class="front"><div class="chinese_long"><h1>出租车</h1></div><div class="pinyin_long"><h3>chū&thinsp;zū&thinsp;chē</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>subway</h3></div>
    <div class="front"><div class="chinese"><h1>地铁</h1></div><div class="pinyin"><h3>dì&thinsp;tiě</h3></div></div>
  </div>
  <div class="flip3D">
    <div class="back"><h3>ship</h3></div>
    <div class="front"><div class="chinese"><h1>船</h1></div><div class="pinyin"><h3>chuán</h3></div></div>
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