Looking bad after build

[elihaidv]

Hi.
When I use npm run serve It works well.
But with npm run build It looking bad.

While serving:

After build:

My Code:

<v-draggable-treeview
  group="test"
  v-model="items"
></v-draggable-treeview>

Data Section:

items: [{ id: 1, name: "hoge", children: [{ id:11, name: "hoge-child1" }] }]

[suusan2go]

@elihaidv Can you share a minimum repository to reproduce your issue?

[elihaidv]

Finally I have figure it out!
Just adding

import "vuetify/dist/vuetify.css";

in my main.js

Maybe it will be good idea to put it in readme