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a:hover .クイズ{transform:translateY(0);
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<div id="変化">
<a href="sample_css_019_Ch_05.html"data-A-B="M0,0 0,230 600,230 600,0z">
<div class="コンポーネント">
<img src="sample_css_019_Ch_05.png"width="600"height="600">
<svg width="600"height="600"viewBox="0 0 600 600"><path d="M0,0 0,500 500,300 300,0z"/></svg>
<div class="クイズ">寒い国はどこですか？<ol><li>南極</li><li>北極</li><li>北海道</li><li>アラスカ</li><li>カナダ</li></ol></div>
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