el-row使用非零 gutter 时宽度溢出出现水平滚动条

验证#

代码#

<template>
  <div>
    <el-alert
      title="1. 如果为row直接添加gutter的话会导致超出父盒子的宽度，可以为父盒子设置左右的padding=gutter/2"
      type="success"
      :closable="false"
    >
    </el-alert>
    <el-alert
      title="2. 建议还是不要使用row的gutter，如果需要padding，由内容自己去控制padding"
      type="success"
      :closable="false"
    >
    </el-alert>
    <div class="test">
      <el-divider>普通用法</el-divider>
      <el-row>
        <el-col :span="6"> 6 </el-col>
        <el-col :span="6">6</el-col>
        <el-col :span="6">6</el-col>
        <el-col :span="6">6</el-col>
      </el-row>
      <el-divider>为row添加gutter</el-divider>
      <el-row :gutter="30">
        <el-col :span="6">6</el-col>
        <el-col :span="6">6</el-col>
        <el-col :span="6">6</el-col>
        <el-col :span="6">6</el-col>
      </el-row>
      <!-- 上面的问题，设置了gutter后，有下面两个变化
          1. row的宽度会增加30px(通过margin负值)；
          2. col会增加15左右的padding
     -->
      <el-divider
        >场景1：容器分两块，左边18份，右边6份,容器有左右的内边距</el-divider
      >
      <div class="demo">
        <el-row :gutter="30">
          <el-col :span="18">18</el-col>
          <el-col :span="6">6</el-col>
        </el-row>
      </div>
      <el-divider>场景2：在场景1的条件下，对18份再细分4份</el-divider>
      <div class="demo">
        <el-row>
          <el-col :span="18">
            <el-row>
              <el-col :span="6">6</el-col>
              <el-col :span="6">6</el-col>
              <el-col :span="6">6</el-col>
              <el-col :span="6">6</el-col>
            </el-row>
          </el-col>
          <el-col :span="6">6</el-col>
        </el-row>
      </div>
    </div>
  </div>
</template>
<script setup></script>
<style scoped>
.test {
  width: 900px;
  margin: 0 auto;
  height: 300px;
  border: 1px solid #f00;
}
[class*="el-col"] {
  border: 1px solid #000;
}
.demo {
  padding: 0 15px;
}
.el-alert {
  margin-bottom: 10px;
}
</style>