you can change the size of both neighbor dom by dragging gutter

yarn add vue-gutter-resize
# or
npm i vue-gutter-resize

import Vue from 'vue/dist/vue.esm.js'
import VueGutterResize from 'vue-gutter-resize'
Vue.use(VueGutterResize)

import { columnGutter } from 'vue-gutter-resize'

// esm module
import { columnGutter } from 'vue-gutter-resize/dist/vue-gutter-resize.esm.js'
// umd module
import { columnGutter } from 'vue-gutter-resize/dist/vue-gutter-resize.umd.js'
// commonjs module
import { columnGutter } from 'vue-gutter-resize/dist/vue-gutter-resize.js'

<template>
  <div>
    <column-gutter
      :column="column"
      :width="'100vw'"
      :height="'600px'"
      :gutterSizes="['4px', '1rem', '1em']"
      :colors="colors"
      :columnSizes="[4, 1, 4, 1]"
      @resize="resize">
      <div slot="col-0">0</div>
      <div slot="col-1">1</div>
      <div slot="col-2">2</div>
      <div slot="col-3">3</div>
    </column-gutter>
  </div>
</template>

<script>
import { columnGutter } from 'vue-gutter-resize'

export default {
  data(){
    return {
      column: 4,
      colors: ['red', 'blue', 'yellow']
    }
  },
  methods: {
    resize ({ col }) {
      console.log(col) // current col size (etc... [25, 25, 25, 25]
    }
  },
  components: {
    'column-gutter': columnGutter
  }
}
</script>

<template>
  <div>
    <row-gutter
      style="border: 1px solid #ccc;"
      :row="row"
      :width="'800px'"
      :height="'600px'"
      :gutterSize="'4px'"
      :colors="colors"
      :rowSizes="[1, 2, 3, 4]"
      @resize="resize">
      <div slot="row-0">0</div>
      <div slot="row-1">1</div>
      <div slot="row-2">2</div>
      <div slot="row-3">3</div>
    </row-gutter>
  </div>
</template>

<script>
import { rowGutter } from 'vue-gutter-resize'

export default {
  data(){
    return {
      row: 4,
      colors: ['red', 'blue', 'yellow']
    }
  },
  methods: {
    resize ({ row }) {
      console.log(row) // current row size (etc... [25, 25, 25, 25]
    }
  },
  components: {
    'row-gutter': rowGutter
  }
}
</script>

<div slot="col-0">the first column</div>
<div slot="col-1">the second column</div>
<div slot="col-2">the third column</div>

<div slot="row-0">the first row</div>
<div slot="row-1">the second row</div>
<div slot="row-2">the third row</div>