<title>Foundation 实例</title>
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<h3>Magellan Options</h3>
<h5 class="subheader"> <code>threshold</code> 选项指定导航在什么时候需要固定位置。会根据滚动条滚动计算，默认为 0 (auto)。该实例中我们设置为 100:</h5>
<div data-magellan-expedition="fixed" data-options="threshold:100">
<dd data-magellan-arrival="page1"><a href="#page1">Page 1</a></dd>
<dd data-magellan-arrival="page2"><a href="#page2">Page 2</a></dd>