vote-admin/src/App.vue

<template>
  <div id="app">
    <router-view/>
  </div>
</template>

<style lang="less">
*{
  margin: 0;
  padding: 0;
}
html,body{
  width:100%;
  height:100%;
  /*background: #252a2f;*/
  background: #eeeeee;
}
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /*text-align: center;*/
  color: #2c3e50;
  width: 100%;
  height: 100%;
  font-size:13px;
}
.flex-center{
  display: flex;
  align-items: center;
  justify-content: center;
}

</style>