<div id="app">
  <button @click="prompt">点击我(^_^)</button>
  <p>{{ message }}</p>
</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;
}

button {
  padding:15px 60px;
  outline: none;
  background-color: #27ae60;
  border: none;
  border-radius:5px;
  box-shadow: 0 9px #95a5a6;
  display: block;
  margin-bottom: 30px;
  font-size: 1rem;
  color: #fff;
  width: 100%;

  &:hover{
    background-color: #2ecc71;
  }

  &:active {
    background-color: #2ecc71;
    box-shadow: 0 5px #95a5a6;
    transform: translateY(4px);
  }
}
p {
  text-align: center;
}

let app = new Vue({
  el: '#app',
  data () {
    return {
      message: '没发生任何事情!'
    }
  },
  methods: {
    prompt: function () {
      this.message='快来看这里！我是新讯息！'
    }
  }
})