手风琴切换效果

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>React</title>
<script src="https://unpkg.com/react@15.3.2/dist/react.js"></script>
<script src="https://unpkg.com/react-dom@15.3.2/dist/react-dom.js"></script>
<script src="https://unpkg.com/babel-core@5.8.38/browser.min.js"></script>
<style>
*{
margin:0;
padding:0;
}
.accordion{
background:#f00;
height:400px;
}
.accordion .div{
float:left;
100%;
}
.accordion .title{
background:#0f0;
height: 20px;
line-height:20px;
cursor:pointer;
}
.accordion .content{
transition:height 1s;
height:0;
background:#00f;
overflow:auto;
}
.accordion .content.full{
height:320px;
}
.accordion:after{
clear:both;
content:"";
display:block;
}
</style>
</head>
<body>
<div id="example">

</div>
<script type="text/babel">
var AccordionDivComponent = React.createClass({
render : function() {
return (
<div className="div">
<div className="title" onClick={this.props.clk}>title</div>
<div className={"content "+(this.props.active ? "full" : "")} >content</div>
</div>
);
}
});
var Accordion = React.createClass({
getInitialState : function() {
return {
index : 0
}
},
handlClick : function(index , ev) {
this.setState({
index : index
})
},
render : function() {
return (<div className="accordion">
{this.props.data.map((el, index)=> {
return (<AccordionDivComponent active={this.state.index == index} clk={this.handlClick.bind(null,index)} key={index} />)
})}
</div>);
}
});
var arr = [
{
title : "title",
content : "content"
},
{
title : "title1",
content : "content1"
},
{
title : "title2",
content : "content2"
},
{
title : "title2",
content : "content2"
}
];
//console.time();
ReactDOM.render(
<Accordion data={arr}/>,
document.getElementById('example')
);
</script>
</body>
</html>