*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}
header{
    background: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}
form {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background: #f9f9f9;
    margin-top: 10%;
}
form label {
    display: block;
    margin-bottom: 5px;
}
form input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
form button {
    background: #333;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
}
form button:hover {
    background: #555;
}