JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" placeholder="請輸入姓名" id="keyword">
<button class="show" onclick="myFunction()">線上下單 </button>
<button class="about" onclick="myFunction2()">認識工廠 </button>
<div class="swap">
<h2>我要訂購</h2>
<hr>
<ul>
<li>您的訂單</li>
<li>顧客姓名：<span id="use">XXX</span></li>
</ul>
<hr>

</div>

CSS

.show, .about {
  padding: 10px;
  display: block;
  border: 0;
  background-color: #fa0;
  font-size: 24px;
  color: blue;
  font-weight: bold;
  border-radius: 10px;
  box-shadow: 5px 5px 5px #ccc;
  cursor: pointer;
}

button + button {
  margin-top: 20px;
}

.show:hover, .about:hover {
  transform: scale(1.2);
  color: white;
  background-color: #aaa;
}
.swap{
  background-color: gray;
}

JavaScript

function myFunction(){
var name = document.getElementById('keyword').value;
var mes = "您好！謝謝您對我們的衣服有興趣！請致電 0987-654-321，會有專人提供您報價！";
var use =document.getElementById('use').textContent=name;
alert(name+mes);
}
function myFunction2(){
var abot = "我們工廠位於新北市，通過國際 ISO9001 認證，品質讓您放心！";
alert(abot);
}