Element 引入css失败-CFANZ编程社区

刚学Element,引入css失败
发现vue.js必须在index.js前
不然显示失败，而且css样式也不会加载

<script src="js/vue.js"></script>
<script src="https://unpkg.com/element-ui/lib/index.js"></script>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <!-- 引入样式 -->
    <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
</head>
<body>

<div id="app">
    <el-row>
        <el-button>默认按钮</el-button>
        <el-button type="primary">主要按钮</el-button>
        <el-button type="success">成功按钮</el-button>
        <el-button type="info">信息按钮</el-button>
        <el-button type="warning">警告按钮</el-button>
        <el-button type="danger">危险按钮</el-button>
    </el-row>
</div>



</body>
<!-- 引入组件库 -->
<script src="js/vue.js"></script>
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<script>
    new Vue({
        el: '#app',
    })
</script>
</html>