<!DOCTYPE html>
<html lang="zh-Hant-TW">
<head>
    <meta charset="utf-8">
    <style>
        body {
            margin: 0;
            height: 100vh;
            overflow: hidden;
            background: #f3f3f3;
        }
        .main {
            width: 50vw;
            margin: 0 auto;
            position: relative;
            top: 30vh;
        }
        figcaption {
            text-align: center;
            color: #9b9b9b;
            font-size: 2rem;
        }
        #icon {
            width