var LeftNav = React.createClass({
render:function(){
return(
<div id="leftNav">
<div id="mainTitle"><h3>Title</h3></div>
<div className="title1"><p>一、我是个一级标题</p></div>
<div className="title1 heighlighted"><p>二、我是个一级标题</p></div>
<div className="title2"><p>1、我是个二级标题</p></div>
<div className="title3"><p>(1)我是个三级标题</p></div>
<div className="title3"><p>(2)我是个三级标题</p></div>
<div className="title2"><p>2、我是个二级标题</p></div>
<div className="title1"><p>3、我是个一级标题</p></div>
</div>
);
}
})