J'ai une simple table BootstrapVue.

CSS en App.vue 中定义。这是 App.vuecode.

<template>
  <div id="app">
    <!-- <img alt="Vue logo" src="./assets/logo.png"> -->
    <TestTable msg="testing"/>
  </div>
</template>

<script>
import TestTable from './components/TestTable.vue'

export default {
  name: 'App',
  components: {
    TestTable
  }
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;  
}
</style>

Voici le code pour TestTable.vue.

<template>
  <div>
    <b-table striped hover :items="items"></b-table>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        items: [
          { age: 40, first_name: 'Dickerson', last_name: 'Macdonald' },
          { age: 21, first_name: 'Larsen', last_name: 'Shaw' },
          { age: 89, first_name: 'Geneva', last_name: 'Wilson' },
          { age: 38, first_name: 'Jami', last_name: 'Carney' }
        ]
      }
    }
  }
</script>

margin-top: 60px 在 App.vue 中定义。我想修改 TableTest.vue ，使其覆盖 App.vue 中 CSS 的边距顶部。我想要 margin-top: 0px 用于 TableTest.vue.

J'utilise Vue v2.6 et Bootstrap-vue.