-->
	</section>
</header>
<section id="bd">
	<section id="syntax" class="g-mod g-attr">
		<h2 class="tit">语法：</h2>
		<div class="cont">
			<p><strong>nav-down</strong>：auto | &lt;id&gt; [ current | root | &lt;target-name&gt; ]?</p>
			<p><strong>默认值</strong>：<mark class="defaultvalue">auto</mark></p>
			<p><strong>适用于</strong>：所有 enabled 的元素</p>
			<p><strong>继承性</strong>：无</p>
			<p><strong>动画性</strong>：否</p>
			<p><strong>计算值</strong>