body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background: #f4f4f9;
}
.container {
    width: 600px;
    margin: auto;
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,.1);
}
label {
    display: block;
    margin-top: 10px;
}
input, select, textarea {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    box-sizing: border-box;
}
button {
    background: #007bff;
    color: white;
    padding: 10px;
    border: none;
    cursor: pointer;
    margin-top: 15px;
}
button:hover {
    background: #0056b3;
}