跟着做的，为什么我把helloworld组件里style中的内容删了会报错呃

<style scoped>     <!-- Add "scoped" attribute to limit CSS to this component only -->

h1, h2 {

  font-weight: normal;

}

ul {

  list-style-type: none;

  padding: 0;

}

li {

  display: inline-block;

  margin: 0 10px;

}

a {

  color: #42b983;

}

</style>