ポップアップウィンドウのデザイン7選｜コピペで実装できるコード付き

2025年7月2日

レスポンシブ対応の実装例＆コード付き！異なるデザインパターンのポップアップウィンドウ（ボタンをクリックすると、画面下からポップアップウィンドウが出現し、3秒後に消える）を集めました！

HTML / CSS / JavaScript は記事後半に掲載していますので、ご自由にご利用ください。

ポップアップウィンドウとは？

ポップアップウィンドウは、ユーザーの操作に応じて新しく開く小さなブラウザウィンドウです。別ページの表示や補足情報の案内などに使われ、モーダルと違って背後の操作を制限しません。

【1】シンプルポップアップ

<div class="container-1">
    <div id="popup-container-1">
        <button id="popup-btn-1">シンプル</button>
    </div>
    <div id="popup-1" class="popup-1">
        <div class="popup-content-1">
            <p>シンプルポップアップ</p>
            <p>シンプルで使いやすいポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-1 #popup-btn-1 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-1 #popup-btn-1:hover {
    opacity: 0.5;
}

.container-1 .popup-1 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-1 .popup-1.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide 3.4s ease forwards;
}

@keyframes popupShowHide {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-1 .popup-content-1 {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 2px solid #007bff;
}

.container-1 .popup-content-1 p:first-child {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #007bff;
}

.container-1 .popup-content-1 p:last-of-type {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-1 .popup-content-1 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-1 .popup-content-1 p:first-child {
        font-size: 20px;
    }
    
    .container-1 .popup-content-1 p:last-of-type {
        font-size: 14px;
    }
    
    .container-1 #popup-btn-1 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-1 .popup-content-1 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-1 .popup-content-1 p:first-child {
        font-size: 18px;
    }
    
    .container-1 .popup-content-1 p:last-of-type {
        font-size: 13px;
    }
    
    .container-1 #popup-btn-1 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

【2】カード風ポップアップ

<div class="container-2">
    <div id="popup-container-2">
        <button id="popup-btn-2">カード風</button>
    </div>
    <div id="popup-2" class="popup-2">
        <div class="popup-content-2">
            <p>カード風ポップアップ</p>
            <p>カードのような見た目のポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-2 #popup-btn-2 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-2 #popup-btn-2:hover {
    opacity: 0.5;
}

.container-2 .popup-2 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-2 .popup-2.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide2 3.4s ease forwards;
}

@keyframes popupShowHide2 {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-2 .popup-content-2 {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1), 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e9ecef;
    transform: rotate(-1deg);
}

.container-2 .popup-content-2::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #28a745, #20c997);
    border-radius: 22px;
    z-index: -1;
    opacity: 0.1;
}

.container-2 .popup-content-2 p:first-child {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #28a745;
    text-shadow: 0 1px 2px rgba(40, 167, 69, 0.1);
}

.container-2 .popup-content-2 p:last-of-type {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-2 .popup-content-2 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-2 .popup-content-2 p:first-child {
        font-size: 20px;
    }
    
    .container-2 .popup-content-2 p:last-of-type {
        font-size: 14px;
    }
    
    .container-2 #popup-btn-2 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-2 .popup-content-2 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-2 .popup-content-2 p:first-child {
        font-size: 18px;
    }
    
    .container-2 .popup-content-2 p:last-of-type {
        font-size: 13px;
    }
    
    .container-2 #popup-btn-2 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

【3】ポップアップ

<div class="container-3">
    <div id="popup-container-3">
        <button id="popup-btn-3">グラデーション</button>
    </div>
    <div id="popup-3" class="popup-3">
        <div class="popup-content-3">
            <p>グラデーションポップアップ</p>
            <p>美しいグラデーションを使用したポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-3 #popup-btn-3 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-3 #popup-btn-3:hover {
    opacity: 0.5;
}

.container-3 .popup-3 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-3 .popup-3.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide3 3.4s ease forwards;
}

@keyframes popupShowHide3 {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-3 .popup-content-3 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
    color: white;
    border: 3px solid rgba(255, 255, 255, 0.2);
}

.container-3 .popup-content-3::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%, rgba(255, 255, 255, 0.1) 100%);
    border-radius: 12px;
    pointer-events: none;
}

.container-3 .popup-content-3 p:first-child {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.container-3 .popup-content-3 p:last-of-type {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 25px;
    line-height: 1.6;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-3 .popup-content-3 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-3 .popup-content-3 p:first-child {
        font-size: 20px;
    }
    
    .container-3 .popup-content-3 p:last-of-type {
        font-size: 14px;
    }
    
    .container-3 #popup-btn-3 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-3 .popup-content-3 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-3 .popup-content-3 p:first-child {
        font-size: 18px;
    }
    
    .container-3 .popup-content-3 p:last-of-type {
        font-size: 13px;
    }
    
    .container-3 #popup-btn-3 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

【4】マジカルポップアップ

<div class="container-4">
    <div id="popup-container-4">
        <button id="popup-btn-4">マジカル</button>
    </div>
    <div id="popup-4" class="popup-4">
        <div class="popup-content-4">
            <p>マジカルポップアップ</p>
            <p>魔法のような複合アニメーション効果を持つポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-4 #popup-btn-4 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-4 #popup-btn-4:hover {
    opacity: 0.5;
}

.container-4 .popup-4 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-4 .popup-4.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide4 3.4s ease forwards;
}

@keyframes popupShowHide4 {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-4 .popup-content-4 {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 25px 50px rgba(111, 66, 193, 0.2);
    border: 2px solid #6f42c1;
    animation: glow 2s ease-in-out infinite alternate, float 3s ease-in-out infinite;
    overflow: hidden;
}

@keyframes glow {
    from {
        box-shadow: 0 25px 50px rgba(111, 66, 193, 0.2);
    }
    to {
        box-shadow: 0 25px 50px rgba(111, 66, 193, 0.4), 0 0 20px rgba(111, 66, 193, 0.3);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

.container-4 .popup-content-4::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(111, 66, 193, 0.1), transparent, rgba(111, 66, 193, 0.1), transparent);
    animation: rotate 4s linear infinite;
    z-index: -1;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.container-4 .popup-content-4::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(111, 66, 193, 0.05) 50%, transparent 70%);
    animation: shimmer 2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.container-4 .popup-content-4 p:first-child {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #6f42c1;
    animation: textGlow 2s ease-in-out infinite alternate, bounce 2s ease-in-out infinite;
    position: relative;
}

@keyframes textGlow {
    from {
        text-shadow: 0 0 5px rgba(111, 66, 193, 0.3);
    }
    to {
        text-shadow: 0 0 10px rgba(111, 66, 193, 0.6), 0 0 20px rgba(111, 66, 193, 0.4);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-3px);
    }
}

.container-4 .popup-content-4 p:last-of-type {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
    animation: fadeInOut 3s ease-in-out infinite;
}

@keyframes fadeInOut {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-4 .popup-content-4 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-4 .popup-content-4 p:first-child {
        font-size: 20px;
    }
    
    .container-4 .popup-content-4 p:last-of-type {
        font-size: 14px;
    }
    
    .container-4 #popup-btn-4 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-4 .popup-content-4 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-4 .popup-content-4 p:first-child {
        font-size: 18px;
    }
    
    .container-4 .popup-content-4 p:last-of-type {
        font-size: 13px;
    }
    
    .container-4 #popup-btn-4 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

【5】ミニマルポップアップ

<div class="container-5">
    <div id="popup-container-5">
        <button id="popup-btn-5">ミニマル</button>
    </div>
    <div id="popup-5" class="popup-5">
        <div class="popup-content-5">
            <p>ミニマルポップアップ</p>
            <p>シンプルでミニマルなデザインのポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-5 #popup-btn-5 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-5 #popup-btn-5:hover {
    opacity: 0.5;
}

.container-5 .popup-5 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-5 .popup-5.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide5 3.4s ease forwards;
}

@keyframes popupShowHide5 {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-5 .popup-content-5 {
    background: #ffffff;
    padding: 25px;
    border-radius: 4px;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #e9ecef;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container-5 .popup-content-5 p:first-child {
    font-size: 18px;
    font-weight: 400;
    margin-bottom: 15px;
    color: #495057;
    letter-spacing: 0.5px;
}

.container-5 .popup-content-5 p:last-of-type {
    font-size: 14px;
    color: #868e96;
    margin-bottom: 25px;
    line-height: 1.5;
    font-weight: 300;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-5 .popup-content-5 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-5 .popup-content-5 p:first-child {
        font-size: 16px;
    }
    
    .container-5 .popup-content-5 p:last-of-type {
        font-size: 13px;
    }
    
    .container-5 #popup-btn-5 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-5 .popup-content-5 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-5 .popup-content-5 p:first-child {
        font-size: 15px;
    }
    
    .container-5 .popup-content-5 p:last-of-type {
        font-size: 12px;
    }
    
    .container-5 #popup-btn-5 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

【6】付箋風ポップアップ

<div class="container-6">
    <div id="popup-container-6">
        <button id="popup-btn-6">付箋風</button>
    </div>
    <div id="popup-6" class="popup-6">
        <div class="popup-content-6">
            <p>付箋風ポップアップ</p>
            <p>付箋のような見た目のポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-6 #popup-btn-6 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-6 #popup-btn-6:hover {
    opacity: 0.5;
}

.container-6 .popup-6 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-6 .popup-6.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide6 3.4s ease forwards;
}

@keyframes popupShowHide6 {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-6 .popup-content-6 {
    background: #ffffff;
    padding: 30px;
    border-radius: 0;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 20px 60px rgba(23, 162, 184, 0.15);
    border-left: 4px solid #17a2b8;
    transform: rotate(-2deg);
}

.container-6 .popup-content-6::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 20px 20px 0 0;
    border-color: #17a2b8 transparent transparent transparent;
}

.container-6 .popup-content-6 p:first-child {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #17a2b8;
    font-family: 'Courier New', monospace;
}

.container-6 .popup-content-6 p:last-of-type {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
    font-family: 'Courier New', monospace;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-6 .popup-content-6 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-6 .popup-content-6 p:first-child {
        font-size: 20px;
    }
    
    .container-6 .popup-content-6 p:last-of-type {
        font-size: 14px;
    }
    
    .container-6 #popup-btn-6 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-6 .popup-content-6 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-6 .popup-content-6 p:first-child {
        font-size: 18px;
    }
    
    .container-6 .popup-content-6 p:last-of-type {
        font-size: 13px;
    }
    
    .container-6 #popup-btn-6 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

【7】プレミアムポップアップ

<div class="container-7">
    <div id="popup-container-7">
        <button id="popup-btn-7">プレミアム</button>
    </div>
    <div id="popup-7" class="popup-7">
        <div class="popup-content-7">
            <p>プレミアムポップアップ</p>
            <p>高級感のあるデザインのポップアップウィンドウです。</p>
        </div>
    </div>
</div>

.container-7 #popup-btn-7 {
    cursor: pointer;
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    color: #333;
    background-color: #eee;
    font-weight: 600;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    display: block;
    margin: 0 auto;
    width: 180px;
}

.container-7 #popup-btn-7:hover {
    opacity: 0.5;
}

.container-7 .popup-7 {
    position: fixed;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 90%;
    max-height: 90%;
}

.container-7 .popup-7.active {
    opacity: 1;
    visibility: visible;
    bottom: 20px;
    transform: translateX(-50%);
    animation: popupShowHide7 3.4s ease forwards;
}

@keyframes popupShowHide7 {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
    20% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    80% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(100%);
    }
}

.container-7 .popup-content-7 {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    position: relative;
    min-width: 300px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
    border: 2px solid #ffd700;
    overflow: hidden;
}

.container-7 .popup-content-7::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ffd700, #ffed4e, #ffd700);
}

.container-7 .popup-content-7 p:first-child {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #333;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.container-7 .popup-content-7 p:last-of-type {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .container-7 .popup-content-7 {
        padding: 20px;
        min-width: 280px;
    }
    
    .container-7 .popup-content-7 p:first-child {
        font-size: 20px;
    }
    
    .container-7 .popup-content-7 p:last-of-type {
        font-size: 14px;
    }
    
    .container-7 #popup-btn-7 {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container-7 .popup-content-7 {
        padding: 15px;
        min-width: 250px;
    }
    
    .container-7 .popup-content-7 p:first-child {
        font-size: 18px;
    }
    
    .container-7 .popup-content-7 p:last-of-type {
        font-size: 13px;
    }
    
    .container-7 #popup-btn-7 {
        padding: 8px 16px;
        font-size: 13px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // すべてのポップアップボタンを動的に検索
    const popupButtons = document.querySelectorAll('[id^="popup-btn-"]');
    
    popupButtons.forEach(function(button) {
        // ボタンのIDからポップアップ番号を抽出
        const buttonId = button.id;
        const popupNumber = buttonId.replace('popup-btn-', '');
        const popup = document.getElementById(`popup-${popupNumber}`);
        
            button.addEventListener('click', function() {
                popup.classList.add('active');
            });

            // アニメーション終了後にポップアップを閉じる
            popup.addEventListener('animationend', function() {
                popup.classList.remove('active');
            });
    });
});

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