body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 20px;
}

h2 {
    text-align: center;
}

.container {
    max-width: 800px;
    width: 90%;
    margin: 0 auto;
}

.form-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.form-container input[type="text"],
.form-container button {
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #ccc;
    width: calc(100% - 20px);
    margin-bottom: 10px;
}

.form-container button {
    background-color: #66cccc;
    color: #fff;
    cursor: pointer;
}

.form-container button:hover {
    background-color: #4d9a9a;
}

.list-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.list-container ul {
    text-align: center;
    list-style-type: none;
    padding: 0;
}

.list-container li {
    margin-bottom: 10px;
}