可以直接拿过来用的element-ui 侧边栏伸缩布局 

<template>
  <div id="home">
    <el-container>
      <el-aside width="auto">
        <div class="logo"></div>
        <el-menu class="el-menu-vertical-demo" collapse-transition="true" @open="handleOpen" @close="handleClose" :collapse="isCollapse">
          <el-submenu index="1">
            <template slot="title">
              <i class="el-icon-location"></i>
              <span slot="title">导航一</span>
            </template>
            <el-menu-item-group>
                <el-menu-item>
                <i class="el-icon-location"></i>
                <span slot="title">选项1</span>
                </el-menu-item>
                <el-menu-item>
                <i class="el-icon-location"></i>
                <span slot="title">选项2</span>
                </el-menu-item>
            </el-menu-item-group>
          </el-submenu>
        </el-menu>
      </el-aside>
      <el-container>
        <el-header>
          <i class="el-icon-location toggle" @click="toggleCollapse"></i>
          <div class="system-title" >管理系统</div>
        </el-header>
        <el-main>Main</el-main>
      </el-container>
    </el-container>
  </div>
</template>
<script>
export default {
  data() {
    return {
      isCollapse: true
    };
  },
  methods: {
    handleOpen (key, keyPath) {
      console.log(key, keyPath)
    },
    handleClose (key, keyPath) {
      console.log(key, keyPath)
    },
    toggleCollapse () {
      console.log(123456789);
      
      this.isCollapse = !this.isCollapse
    }
  }
}
</script>
<style lang="scss" scoped>
  #home {
    width: 100%;
    height: 100%;
    .el-menu-admin:not(.el-menu--collapse) {
      width: 200px;
      min-height: 400px;
    }
    .el-container {
      height: 100%;
    }
    .el-aside {
      background-color: #545c64;
    }
    .el-header {
      background-color: #fe4;
    }
    .el-main {
      background-color: #f20;
    }
    .toggle {
      font-size: 36px;
      color: #989898;
      cursor: pointer;
      line-height: 30px;
    }

  }
  
</style>