<div id="app">
  <h1>{{ fullName(firstName, lastName) }}</h1>
  <h1>{{ fullName('大漠', 'w3cplus.com') }}</h1>
</div>

@import url(https://fonts.googleapis.com/css?family=Montserrat);

html,body {
  width: 100vw;
  height: 100vh;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: montserrat;
  background: 
		linear-gradient(rgba(196, 102, 0, 0.6), rgba(155, 89, 182, 0.6));
}

#app {
  background: white;
	border: 0 none;
	border-radius: 3px;
	box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
	padding: 20px 30px;
	box-sizing: border-box;
  text-align: center;
}

let app = new Vue({
  el: '#app',
  data () {
    return {
      firstName: 'Airen',
      lastName: 'Liao'
    }
  },
  methods: {
    fullName: function (first, last) {
      return first + ' ' + last
    }
  }
})