vue-element-admin/src/views/components-demo/splitpane.vue

<template>
  <div class="components-container">
    <code><strong>SplitPane</strong> If you've used
      <a href="http://codepen.io/" target="_blank"> codepen</a>,
      <a href="https://jsfiddle.net/" target="_blank"> jsfiddle </a>will not be unfamiliar.
      <a href="https://github.com/PanJiaChen/vue-split-pane" target='_blank'> Github repository</a>
    </code>
    <split-pane v-on:resize="resize" split="vertical">
      <template slot="paneL">
        <div class="left-container"></div>
      </template>
      <template slot="paneR">
        <split-pane split="horizontal">
          <template slot="paneL">
            <div class="top-container"></div>
          </template>
          <template slot="paneR">
            <div class="bottom-container"></div>
          </template>
        </split-pane>
      </template>
    </split-pane>
  </div>
</template>

<script>
import splitPane from 'vue-splitpane'

export default {
  name: 'splitpane-demo',
  components: { splitPane },
  methods: {
    resize() {
      console.log('resize')
    }
  }
}
</script>

<style  scoped>
	.components-container {
	  position: relative;
	  height: 100vh;
	}

	.left-container {
	  background-color: #F38181;
	  height: 100%;
	}

	.right-container {
	  background-color: #FCE38A;
	  height: 200px;
	}

	.top-container {
	  background-color: #FCE38A;
	  width: 100%;
	  height: 100%;
	}

	.bottom-container {
	  width: 100%;
	  background-color: #95E1D3;
	  height: 100%;
	}
</style>