如何设置Vuetify 2扩展面板的标高

<template>
  <v-expansion-panels>
    <v-expansion-panel>
      <v-expansion-panel-header>
        Panel 1
      </v-expansion-panel-header>
      <v-expansion-panel-content>
        Content 1
      </v-expansion-panel-content>
    </v-expansion-panel>
    <v-expansion-panel>
      <v-expansion-panel-header>
        Panel 2
      </v-expansion-panel-header>
      <v-expansion-panel-content>
        Content 2
      </v-expansion-panel-content>
    </v-expansion-panel>
  </v-expansion-panels>
</template>

<v-expansion-panel elevation="3">
  <!-- 扩展面板内容 -->
</v-expansion-panel>

<v-expansion-panel class="custom-elevation">
  <!-- 扩展面板内容 -->
</v-expansion-panel>

.custom-elevation {
  box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.24);
}