src/components/geomagnetism.vue

<template>
  <div class="hello">
    1
  </div>
</template>
<script>
export default {
  name: 'geomagnetism',
  data () {
    return {
      msg: 'Welcome to Your Vue.js App'
    }
  }
}
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped lang="scss">
.hello{
}
</style>