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<title>选项卡</title>
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<div id="tab01">
<h3>首页</h3>
<div class="jj"><p>嘿嘿,无视div原始class值。</p></div>
<h3 class="pr">测试</h3>
<div><p>继续无视h3原始class值。</p></div>
<h3>无聊</h3>
<div><p>h3没有值也可以~</p></div>
<h3 class="box">傻蛋</h3>
<div><p>div没有值一样可以~</p></div>
</div>
<div id="tab02">
<h4>首页</h4>
<ol class="pr"><li>嘿嘿,无视容器原始class值。</li></ol>
<h4 class="box">测试</h4>
<ol><li>继续无视h3原始class值。</li></ol>
<h4>无聊</h4>
<ol><li>h3没有值也可以~</li></ol>
<h4 class="bb">傻蛋</h4>
<ol><li>div没有值一样可以~</li></ol>
</div>
<div id="tab03">
<h3>首页</h3>
<div class="tab"><p>嘿嘿,无视h3原始class值。</p></div>
<h3>测试</h3>
<div class="tab wushi"><p>继续无视div原始class值。</p></div>
<h3>无聊</h3>
<div class="tab"><p>h3没有值也可以~</p></div>
<h3 class="box">傻蛋</h3>
<div class="tab tab123"><p>class值相似一样也可以~</p><div><p>指定class后,即时再多一个div也行。</p></div></div>
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