body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    text-align: center;
}

.container {
    width: 50%;
    margin: 50px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 24px;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: #fff;
    margin: 5px 0;
    border-radius: 5px;
    border: 1px solid #ddd;
}

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

button.delete-btn {
    background-color: #dc3545;
}