需求是这样的

用的是el-radio-button 

<el-radio-group v-model="staffInfo.sex">
     <el-radio-button label="1">男</el-radio-button>
     <el-radio-button label="2">女</el-radio-button>
</el-radio-group>

样式修改

::v-deep.el-radio-button{
  margin-right: 15px;
  border-radius:4px;
  .el-radio-button__inner {//修改按钮样式
    width: 120px;
    height: 42px;
    background: #F7F8FA;
    color:#333;
    border: 0 !important;
  }
  .el-radio-button__orig-radio:checked + .el-radio-button__inner {// 修改按钮激活样式
      color: #fff;
      background-color: #f63;
      border-color: #f63;
      box-shadow: -1px 0 0 0 #f63;
  }
}