情人节祝福，HTML代码在线实时编辑、实时预览

            
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            <!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>情人节快乐！</title>
    <style>
        body {
            margin: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: linear-gradient(135deg, #ff9a9e, #fad0c4);
            font-family: 'Microsoft Yahei', sans-serif;
            overflow: hidden;
        }

        .container {
            text-align: center;
            padding: 2rem;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 15px;
            box-shadow: 0 0 20px rgba(255, 192, 203, 0.5);
            position: relative;
        }

        h1 {
            color: #ff69b4;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
        }

        .message {
            color: #ff1493;
            font-size: 1.2rem;
            line-height: 1.6;
            max-width: 400px;
            margin: 1rem auto;
            opacity: 0;
            transition: opacity 1s;
        }

        .show {
            opacity: 1;
        }

        .heart-btn {
            background: #ff69b4;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 30px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: transform 0.3s, background 0.3s;
        }

        .heart-btn:hover {
            background: #ff1493;
            transform: scale(1.1);
        }

        .heart {
            position: absolute;
            pointer-events: none;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(20deg); }
        }

        .heart::before,
        .heart::after {
            content: '';
            position: absolute;
            width: 10px;
            height: 16px;
            background: #ff69b4;
            border-radius: 10px 10px 0 0;
        }

        .heart::before {
            transform: rotate(-45deg);
        }

        .heart::after {
            left: 6px;
            transform: rotate(45deg);
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>💖周盼盼， 情人节快乐！ 💖</h1>
        <button class="heart-btn" onclick="showMessage()">点击接收祝福</button>
        <p class="message" id="message">在这特别的日子里，愿我们的爱情如玫瑰般绽放，似星辰般永恒。你的每个微笑都是我生命中最美的礼物，爱你直到永远！</p>
    </div>

    <script>
        function showMessage() {
            document.getElementById('message').classList.add('show');
            createHearts();
            document.querySelector('.heart-btn').style.display = 'none';
        }

        function createHearts() {
            for(let i = 0; i < 20; i++) {
                const heart = document.createElement('div');
                heart.className = 'heart';
                heart.style.left = Math.random() * 100 + 'vw';
                heart.style.animationDelay = Math.random() * 2 + 's';
                document.body.appendChild(heart);

                setTimeout(() => {
                    heart.remove();
                }, 3000);
            }
        }

        // 鼠标移动特效
        document.addEventListener('mousemove', (e) => {
            if(Math.random() > 0.9) {
                const heart = document.createElement('div');
                heart.className = 'heart';
                heart.style.left = e.pageX + 'px';
                heart.style.top = e.pageY + 'px';
                document.body.appendChild(heart);

                setTimeout(() => {
                    heart.remove();
                }, 3000);
            }
        });
    </script>
</body>
</html>
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