body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

header {
    background-color: #333;
    color: white;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
}

header nav ul li {
    margin: 0 15px;
}

header nav ul li a {
    color: white;
    text-decoration: none;
}

main {
    padding: 20px;
}

.product-list {
    display: flex;
    justify-content: space-around;
}

.product {
    text-align: center;
    border: 1px solid #ccc;
    padding: 10px;
    width: 200px;
    border-radius: 10px;
}

.product img {
    width: 100%;
    height: auto;
}

.product button {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
    margin-top: 10px;
}

.product button:hover {
    background-color: #218838;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    width: 100%;
    bottom: 0;
}