前端适配方案

推荐方案 vw+vh+rem+媒体查询

meta 元素的视口需声明

 <meta name="viewport" content="width=device-width,initial-scale=1.0">

媒体查询更改字体大小

html,
body,
#app {
  height: 100%;
  font-size: 16px;
  margin: 0;
  padding: 0;
}
@media screen and (max-width: 1600px) and (min-width: 1280px) {
  html,
  body,
  #app {
    font-size: 14px;
  }
}
@media screen and (max-width: 1280px) and (min-width: 960px) {
  html,
  body,
  #app {
    font-size: 12px;
  }
}
@media screen and (max-width: 960px) {
  html,
  body,
  #app {
    font-size: 10px;
  }
}
/* 设置滚动条的样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 12px;
  background-color: #e6e6e6;
}
/* 滚动槽 */
::-webkit-scrollbar-track {
  border-radius: 10px;
}
::-webkit-scrollbar-thumb {
  background-color: #bfc1c4;
}

使用

<template>
  <div class="box">测试</div>
</template>
<style>
.box {
  width: 100vw;
  height: 50vh;
  font-size: 1.5rem;
}
</style>