这里的星星是什么代码？

<li class="aui-list-item" onclick="location.href='app-puyuetian_tiantianlunjian-index.html'">
	<div class="aui-list-item-label-icon">
		<i class="aui-iconfont aui-icon-star aui-text-danger"></i>
	</div>
	<div class="aui-list-item-inner aui-list-item-arrow">
		<div class="aui-list-item-title">天天论剑</div>
		<div id="zdymybtn" class="aui-list-item-right aui-text-danger">HS第一款跨平台页游</div>
	</div>
</li>