简单实现jQuery手风琴效果方法分享

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<ul class="ul_list">
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          <span>萌宠</span>
          <p class="p1">
            <img  src="img/0.jpg" / alt="简单实现jQuery手风琴效果方法分享" >
          </p>
        </p>
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          <span>萌宠</span>
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          </p>
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      <li class="li_list">
        <p class="pbg">
          <span>萌宠</span>
          <p class="p1">
            <img  src="img/2.jpg" / alt="简单实现jQuery手风琴效果方法分享" >
          </p>
        </p>
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      <li class="li_list mo">
        <p class="pbg">
          <span>萌宠</span>
          <p class="p1">
            <img  src="img/3.jpg" / alt="简单实现jQuery手风琴效果方法分享" >
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