JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/element-ui/lib/index.js"></script>
<div id="app">
    <el-select id='my-select' v-model='myValue'>
        <el-option value='1'>Option 1</el-option>
        <el-option value='2'>Option 2</el-option>
    </el-select>
</div>

SCSS

@import url("//unpkg.com/element-ui/lib/theme-default/index.css");

Babel + JSX

var Main = {
	
  data(){
    return {
			myValue : ''
    }
  },
  mounted(){
  	document.getElementById('my-select').addEventListener('keydown',
			(e)=>{ 
      	if(e.keyCode == 13){ 
            e.stopPropagation() 
        }
        //Nếu muốn chặn luôn arrow keys (các phím mũi tên )
        /* if(e.keyCode == 13 || ( e.keyCode >= 37 && e.keyCode <= 40)){ 
            e.stopPropagation() 
        } */
    	});
  },
  methods: {
  
  
  }
}

var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')