element-plus/docs/examples/space/control-size.vue

<template>
  <el-space direction="vertical" alignment="start" :size="30">
    <el-radio-group v-model="size">
      <el-radio :label="'small'">small</el-radio>
      <el-radio :label="'default'">default</el-radio>
      <el-radio :label="'large'">large</el-radio>
    </el-radio-group>

    <el-space wrap :size="size">
      <el-card v-for="i in 3" :key="i" class="box-card" style="width: 250px">
        <template #header>
          <div class="card-header">
            <span>Card name</span>
            <el-button class="button" type="text">Operation button</el-button>
          </div>
        </template>
        <div v-for="o in 4" :key="o" class="text item">
          {{ 'List item ' + o }}
        </div>
      </el-card>
    </el-space>
  </el-space>
</template>

<script lang="ts">
export default {
  data() {
    return {
      size: 'small',
    }
  },
}
</script>