<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Amazon風ECサイト</title>
<style>
/* === 全体のリセットと基本スタイル === */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: Arial, sans-serif;
background-color: #f8f9fa;
color: #333;
}
img {
max-width: 100%;
height: auto;
}
button {
cursor: pointer;
border: none;
padding: 10px 15px;
border-radius: 5px;
}
a {
text-decoration: none;
color: inherit;
}
/* === ヘッダー部分 === */
header {
background-color: #232f3e;
color: white;
padding: 10px 20px;
display: flex;
align-items: center;
justify-content: space-between;
}
header .logo {
font-size: 24px;
font-weight: bold;
}
header .search-bar {
flex: 1;
margin: 0 20px;
display: flex;
}
header .search-bar input {
width: 100%;
padding: 8px;
font-size: 16px;
border-radius: 4px 0 0 4px;
border: none;
}
header .search-bar button {
background-color: #ff9900;
color: white;
font-size: 16px;
border-radius: 0 4px 4px 0;
}
header .user-actions {
display: flex;
align-items: center;
gap: 15px;
}
header .user-actions a {
color: white;
font-size: 16px;
}
header .cart-icon {
position: relative;
}
header .cart-count {
position: absolute;
top: -5px;
right: -10px;
background-color: red;
color: white;
font-size: 12px;
border-radius: 50%;
padding: 4px 7px;
}
/* === ナビゲーションバー === */
nav {
background-color: #37475a;
padding: 10px 20px;
display: flex;
justify-content: space-around;
}
nav a {
color: white;
font-size: 16px;
}
/* === バナーセクション === */
.banner {
background-image: url('https://via.placeholder.com/1200x400');
background-size: cover;
background-position: center;
height: 400px;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
color: white;
}
.banner h1 {
font-size: 36px;
margin-bottom: 10px;
}
.banner button {
background-color: #ff9900;
border: none;
color: white;
font-size: 16px;
padding: 10px 20px;
}
/* === 商品セクション === */
.products {
display: flex;
flex-wrap: wrap;
gap: 20px;
justify-content: center;
padding: 20px;
}
.product {
width: 23%;
background-color: white;
border-radius: 8px;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
padding: 15px;
text-align: center;
}
.product img {
height: 150px;
object-fit: cover;
border-radius: 8px;
}
.product h3 {
font-size: 18px;
margin: 10px 0;
}
.product .price {
font-size: 16px;
color: #ff9900;
margin-bottom: 10px;
}
.product button {
background-color: #ff9900;
color: white;
font-size: 14px;
}
.product .favorite {
background-color: #e0e0e0;
color: #333;
font-size: 14px;
margin-top: 10px;
}
/* === カートポップアップ === */
.cart-popup {
position: fixed;
top: 70px;
right: 20px;
background-color: white;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
border-radius: 8px;
width: 300px;
padding: 20px;
display: none;
z-index: 1000;
}
.cart-popup h3 {
margin-bottom: 10px;
font-size: 18px;
}
.cart-popup .cart-item {
display: flex;
justify-content: space-between;
margin-bottom: 10px;
}
.cart-popup .cart-item span {
font-size: 14px;
}
.cart-popup button {
width: 100%;
background-color: #ff9900;
border: none;
color: white;
padding: 10px;
font-size: 16px;
}
/* === レスポンシブ対応 === */
@media (max-width: 768px) {
.product {
width: 48%;
}
header .search-bar {
flex-direction: column;
gap: 10px;
}
}
@media (max-width: 480px) {
.product {
width: 100%;
}
}
</style>
</head>
<body>
<header>
<div class="logo">Amazon風ECサイト</div>
<div class="search-bar">
<input type="text" placeholder="商品を検索">
<button>検索</button>
</div>
<div class="user-actions">
<a href="#">ログイン</a>
<div class="cart-icon" onclick="toggleCartPopup()">
<img src="https://via.placeholder.com/32" alt="カート">
<div class="cart-count">0</div>
</div>
</div>
</header>
<nav>
<a href="#">ホーム</a>
<a href="#">カテゴリ</a>
<a href="#">セール</a>
<a href="#">おすすめ</a>
</nav>
<div class="banner">
<div>
<h1>ビッグセール開催中！</h1>
<button>セールを見る</button>
</div>
</div>
<div class="products">
<div class="product">
<img src="https://via.placeholder.com/200" alt="商品1">
<h3>商品1</h3>
<div class="price">¥3,000</div>
<button onclick="addToCart('商品1', '¥3,000')">カートに追加</button>
<button class="favorite" onclick="addToFavorite('商品1')">お気に入り</button>
</div>
<div class="product">
<img src="https://via.placeholder.com/200" alt="商品2">
<h3>商品2</h3>
<div class="price">¥5,000</div>
<button onclick="addToCart('商品2', '¥5,000')">カートに追加</button>
<button class="favorite" onclick="addToFavorite('商品2')">お気に入り</button>
</div>
</div>
<div class="cart-popup" id="cart-popup">
<h3>カートの中身</h3>
<div id="cart-items"></div>
<button onclick="checkout()">購入手続きへ</button>
</div>
<script>
let cart = [];
let favorites = [];
function addToCart(name, price) {
cart.push({ name, price });
updateCart();
alert(`${name} をカートに追加しました！`);
}
function addToFavorite(name) {
if (!favorites.includes(name)) {
favorites.push(name);
alert(`${name} をお気に入りに追加しました！`);
} else {
alert(`${name} はすでにお気に入りに追加されています！`);
}
}
function updateCart() {
const cartCount = document.querySelector('.cart-count');
const cartItems = document.getElementById('cart-items');
cartCount.textContent = cart.length;
cartItems.innerHTML = '';
cart.forEach(item => {
const div = document.createElement('div');
div.className = 'cart-item';
div.innerHTML = `<span>${item.name}</span><span>${item.price}</span>`;
cartItems.appendChild(div);
});
}
function toggleCartPopup() {
const cartPopup = document.getElementById('cart-popup');
cartPopup.style.display = cartPopup.style.display === 'block' ? 'none' : 'block';
}
function checkout() {
alert('購入手続きを開始します！');
cart = [];
updateCart();
toggleCartPopup();
}
</script>
</body>
</html>
