<script type="text/x-template" id="app-template">
  <v-form class="form">
    <v-text-field
      label="sample"
      outlined
    ></v-text-field>
    <v-text-field
      label="sample"
      outlined
    ></v-text-field>
  </v-form>
</script>

<div id="app"></div>

.form {
  width: 500px;
  margin: 10px;
}

.v-text-field__details {
  background: gainsboro;
}
const App = {
  template: "#app-template",
};

new Vue({
  vuetify: new Vuetify(),
  render: (h) => h(App)
}).$mount("#app");

External CSS

  1. https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/vue/2.7.8/vue.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/vuetify/2.6.10/vuetify.min.js