<section class="block">
    <input type="checkbox">
    <div class="case-block">
      <div>展開</div>
      <div>收起</div>
    </div>
    <div class="detail">
      <div>唧唧復唧唧，木蘭當戶織。不聞機杼聲，惟聞女嘆息。(惟聞 通：唯)問女何所思，問女何所憶。女亦無所思，女亦無所憶。昨夜見軍帖，可汗大點兵，軍書十二卷，卷卷有爺名。阿爺無大兒，木蘭無長兄，愿為市鞍馬，從此替爺征。(惟聞
        通：唯)</div>
      <div>東市買駿馬，西市買鞍韉，南市買轡頭，北市買長鞭。旦辭爺娘去，暮宿黃河邊，不聞爺娘喚女聲，但聞黃河流水鳴濺濺。旦辭黃河去，暮至黑山頭，不聞爺娘喚女聲，但聞燕山胡騎鳴啾啾。</div>
      <div>萬里赴戎機，關(guān)山度若飛。朔氣傳金柝，寒光照鐵衣。將軍百戰(zhàn)死，壯士十年歸。</div>
      <div>歸來見天子，天子坐明堂。策勛十二轉(zhuǎn)，賞賜百千強?？珊箚査?，木蘭不用尚書郎，愿馳千里足，送兒還故鄉(xiāng)。(一作：愿借明駝千里足)</div>
      <div>爺娘聞女來，出郭相扶將；阿姊聞妹來，當戶理紅妝；小弟聞姊來，磨刀霍霍向豬羊。開我東閣門，坐我西閣床，脫我戰(zhàn)時袍，著我舊時裳。當窗理云鬢，對鏡帖花黃。出門看火伴，火伴皆驚忙：同行十二年，不知木蘭是女郎。（帖
      通：貼；驚忙一作：惶；惶 火伴 通：伙）</div>
     <div>雄兔腳撲朔，雌兔眼迷離；雙兔傍地走，安能辨我是雄雌？</div>
    </div>
  </section>

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}

.block {
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    display: flex;
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    -ms-flex-flow: column-reverse nowrap;
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    width: 360px;
    margin: 0 auto;
    font-size: 14px;
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    padding: 10px;
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}

.block > .case-block {
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.block > .case-block div:nth-of-type(1) {
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.block > [type="checkbox"] {
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    height: 24px;
    margin: -24px auto 0;
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}

.block > [type="checkbox"]:hover + .case-block {
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